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ESP-BM-3.121-PP — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ESP-BM-3.121-PP: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 10.9 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 6.6 MILLIMETERS MAXIMUM MM, head_length: 6.6 MILLIMETERS MAXIMUM MM, head_diameter: 14.2 MILLIMETERS MAXIMUM MM, thread_length: 25.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-512-1521, 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
ESP-BM-3.121-PP
NSN: 5306-01-512-1521
NIINs: 015121521, 015121576, 015121578, 015121580, 015121586, 015121587, 015121590, 015121644, 015121646, 015121648, 015121650, 015121654, 015121662, 015565535, 015565547, 015565548, 015565549, 015565550, 015565551, 015565558, 015565559, 015565560, 015565561, 015817329, 015841125, 015873315, 016106588
FSC: 5306 — Bolts
CAGE: 338X5 — ND DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 10.9 OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height6.6 MILLIMETERS MAXIMUM MM
head_length6.6 MILLIMETERS MAXIMUM MM
head_diameter14.2 MILLIMETERS MAXIMUM MM
thread_length25.0 MILLIMETERS NOMINAL MM
fastener_length31.6 MILLIMETERS NOMINAL MM
special_featuresOVERALL LENGTH 80MM MM
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
width_between_flats9.6 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM
end_item_identificationMRAP - COMMON NSN - USED ON 2 MRAP VARIANTS AND 1 OTHER WEAPON SYSTEM; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS
NSN5306-01-512-1521
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ESP-BM-3.121-PP · 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 2
30665R2Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
ESP-BM-3.101-GSReference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ESP-BM-3.121-PP?
ESP-BM-3.121-PP is a BOLT,MACHINE.
What parts can replace ESP-BM-3.121-PP?
There are 2 known substitutes for ESP-BM-3.121-PP: 30665R2, ESP-BM-3.101-GS. Substitute compatibility should be verified for your specific system.
What is the NSN for ESP-BM-3.121-PP?
ESP-BM-3.121-PP is cataloged in the U.S. Government catalog under NSN 5306-01-512-1521. 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.