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91257A700 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91257A700: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.281 INCHES NOMINAL IN, thread_length: 1.250 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, fastener_length: 2.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-532-9917, 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
91257A700
NSN: 5306-01-532-9917
FSC: 5306 — Bolts
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.281 INCHES NOMINAL IN
thread_length1.250 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
fastener_length2.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentZINC ALLOY OVERALL
width_between_flats0.625 INCHES NOMINAL IN
end_item_identificationMRAP BUFFALO MK2A2; MRAP - COUGAR CAT1A1 ISS, CAT2A1 ISS, CAT1A1 AND CAT2A1; SEAT SURVIVABILITY UPGRADES; MRAP - COUGAR CAT2 A2
nominal_thread_diameter0.437 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNF
NSN5306-01-532-9917
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91257A700 · 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
KEY FEATURES
•
HEAD HEIGHT: 0.281 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
THREAD LENGTH: 1.250 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.437 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.625 INCHES NOMINAL IN
•
COLOR: YELLOW OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES NOMINAL IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
THREAD LENGTH1.250 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.437 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.625 INCHES NOMINAL IN
COLORYELLOW OVERALL
SURFACE TREATMENTZINC ALLOY OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYHIGH-STRENGTH STEEL HEX HEAD CAPSCREW
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
9904-000033-000Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 91257A700?
91257A700 is a BOLT,MACHINE.
What parts can replace 91257A700?
There is 1 known substitute for 91257A700: 9904-000033-000. Substitute compatibility should be verified for your specific system.
What is the NSN for 91257A700?
91257A700 is cataloged in the U.S. Government catalog under NSN 5306-01-532-9917. 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.