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4000337 — ENGINE,DIESEL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4000337: ENGINE,DIESEL.

The ENGINE,DIESEL is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, head_length: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-614-1773, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4000337
NSN: 5305-01-614-1773
NIINs: 016141773, 016524452, 016524830, 016524951, 016525133, 016529753, 016558673, 016573752, 016573754, 016573761, 016579648, 016595732, 016623415, 016739382, 016740110, 017210934
FSC: 5305 — Screws
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
head_length0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
thread_class2A A
thread_length1.000 INCHES NOMINAL IN
fastener_length2.750 INCHES NOMINAL IN
special_featuresMATERIAL GRADE 8
thread_directionRIGHT-HAND
surface_treatmentBLACK CHEMICAL FINISH OVERALL
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
end_item_identification4210-01-622-0440; MRAP - M-ATV
NSN5305-01-614-1773
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4000337 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 1
4000337002Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4000337?
4000337 is a ENGINE,DIESEL.
What parts can replace 4000337?
There is 1 known substitute for 4000337: 4000337002. Substitute compatibility should be verified for your specific system.
What is the NSN for 4000337?
4000337 is cataloged in the U.S. Government catalog under NSN 5305-01-614-1773. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.