What is the SBA size standard for NAICS 336412?

The SBA size standard for NAICS 336412 (Aircraft Engine and Engine Parts Manufacturing) is 1,500 employees in average employee headcount, per 13 C.F.R. § 121.201.

Is NAICS 336412 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?

Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. Engine OEMs dominate. Small businesses participate at the precision-machining and tooling-component level.

Which federal agencies buy under NAICS 336412?

For FY2024 reporting, the leading federal customers under NAICS 336412 were Department of Defense, NASA, Department of Homeland Security, U.S. Coast Guard, Department of Energy. Live obligation data is available on USAspending.gov.

What FAR or DFARS clauses commonly apply to NAICS 336412 contracts?

Frequent clause flowdowns include DFARS 252.204-7012 (Safeguarding Covered Defense Information); DFARS 252.225-7008 (Restriction on Acquisition of Specialty Metals); DFARS 252.227-7013 (Rights in Technical Data — Noncommercial Items); DFARS 252.211-7003 (Item Unique Identification and Valuation); FAR 52.246-2 (Inspection of Supplies — Fixed-Price). Each contract instrument will incorporate clauses by reference under FAR 52.252-2; this list reflects the high-frequency set for this NAICS, not an exhaustive flowdown.

Manufacturing

NAICS 336412 — Aircraft Engine and Engine Parts Manufacturing

Manufacturing of aircraft engines and parts. Federal use dominated by DoD propulsion programs and NASA engine research.

Quick facts

SBA size standard: 1,500 employees; Average employee headcount · 13 C.F.R. § 121.201
FY2024 federal obligations: $5B–$10B; See live USAspending.gov data →

Top federal customers

Federal agencies that obligate the most spending under NAICS 336412 (FY2024 reporting period). Order tracks federal-obligation volume on USAspending.gov.

1.Department of Defense
2.NASA
3.Department of Homeland Security
4.U.S. Coast Guard
5.Department of Energy

Set-aside fit

Whether NAICS 336412 commonly carries set-aside designations on federal awards. Eligibility for any specific solicitation is set by the contracting officer; this table reflects the FY2024 award pattern, not a guarantee of set-aside status.

SDVOSB (Service-Disabled Veteran-Owned Small Business)
8(a) Business Development Program
HUBZone Small Business
WOSB / EDWOSB
VOSB (Veteran-Owned Small Business)

Engine OEMs dominate. Small businesses participate at the precision-machining and tooling-component level.

Frequent prime contractors

Companies that most frequently appear as prime awardees under NAICS 336412 for FY2024. Drawn from USAspending.gov public award records — verify currency at the live link below.

GE Aerospace
Pratt & Whitney (RTX)
Honeywell Aerospace
Rolls-Royce North America
Curtiss-Wright
Woodward
Triumph Group
Moog
Heico
TransDigm

See live award data on USAspending.gov →

Common FAR / DFARS clauses

Frequently flowed-down clauses on contracts in this NAICS. The clause text on acquisition.gov is authoritative; this list captures the practical pattern, not an exhaustive flowdown.

DFARS 252.204-7012Safeguarding Covered Defense Information
NIST 800-171 on engine programs.
DFARS 252.225-7008Restriction on Acquisition of Specialty Metals
Engine alloys are governed by the specialty-metals restriction.
DFARS 252.227-7013Rights in Technical Data — Noncommercial Items
Engine technical data is heavily protected.
DFARS 252.211-7003Item Unique Identification and Valuation
IUID marking on serialized engine components.
FAR 52.246-2Inspection of Supplies — Fixed-Price
First-article and acceptance test regimes are heavy in engine manufacturing.

Indirect rate considerations

Multi-pool aerospace structure. Engineering and manufacturing overhead separate. Materials handling on alloys and forgings. CAS coverage typical. Engine programs frequently run multi-decade FPRA cycles.

See FieldLedger's Indirect Rate Engine for pool definition and rate tracking, or read the FieldLedger methodology for the underlying FAR Part 31 framework.

How FieldLedger fits NAICS 336412

Indirect Rate Engine for multi-pool structure. Signed timekeeping. Project P&L for program-level cost tracking.

DCAA compliance →Indirect Rate Engine →DCAA readiness check →

Frequently asked

What is the SBA size standard for NAICS 336412?: The SBA size standard for NAICS 336412 (Aircraft Engine and Engine Parts Manufacturing) is 1,500 employees in average employee headcount, per 13 C.F.R. § 121.201.
Is NAICS 336412 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?: Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. Engine OEMs dominate. Small businesses participate at the precision-machining and tooling-component level.
Which federal agencies buy under NAICS 336412?: For FY2024 reporting, the leading federal customers under NAICS 336412 were Department of Defense, NASA, Department of Homeland Security, U.S. Coast Guard, Department of Energy. Live obligation data is available on USAspending.gov.
What FAR or DFARS clauses commonly apply to NAICS 336412 contracts?: Frequent clause flowdowns include DFARS 252.204-7012 (Safeguarding Covered Defense Information); DFARS 252.225-7008 (Restriction on Acquisition of Specialty Metals); DFARS 252.227-7013 (Rights in Technical Data — Noncommercial Items); DFARS 252.211-7003 (Item Unique Identification and Valuation); FAR 52.246-2 (Inspection of Supplies — Fixed-Price). Each contract instrument will incorporate clauses by reference under FAR 52.252-2; this list reflects the high-frequency set for this NAICS, not an exhaustive flowdown.
What indirect-rate structure works for a federal contractor in NAICS 336412?: Multi-pool aerospace structure. Engineering and manufacturing overhead separate. Materials handling on alloys and forgings. CAS coverage typical. Engine programs frequently run multi-decade FPRA cycles.
How does FieldLedger help small federal contractors in NAICS 336412?: Indirect Rate Engine for multi-pool structure. Signed timekeeping. Project P&L for program-level cost tracking.

Sources

U.S. Census NAICS manual — census.gov/naics
SBA size-standards table — 13 C.F.R. § 121.201 (eCFR)
Federal obligations + prime awardees — USAspending.gov NAICS 336412
FAR / DFARS clause text — acquisition.gov

Snapshot date: 2026-05-08 (FY2024 reporting period). Federal-obligation bands and prime-contractor lists reflect the data as of the snapshot — refresh against USAspending.gov for current figures.