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A1987AEA1HPC27 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A1987AEA1HPC27: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.281 INCHES NOMINAL IN, thread_class: 3A A, hole_diameter: 0.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-297-7601, 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
A1987AEA1HPC27
NSN: 5306-00-297-7601
FSC: 5306 — Bolts
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.281 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity2
thread_length1.000 INCHES MINIMUM IN
fastener_length1.000 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
NSN5306-00-297-7601
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A1987AEA1HPC27 · 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: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.000 INCHES MINIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890,ALLOY 2,COMP 4140 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES NOMINAL IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES MINIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
HOLE CONFIGURATION STYLEHEXAGON FLATS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,ALLOY 2,COMP 4140 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 9
A865AEA1DPC33Reference document
Same NSN cross-reference
Reference document — Secondary reference
A571A8EA1DPC43Reference document
Same NSN cross-reference
Reference document — Secondary reference
AEA9611BReference document
Same NSN cross-reference
Reference document — Secondary reference
A1084AEA1EPC19Reference document
Same NSN cross-reference
Reference document — Secondary reference
A2293AEA1BSH1PC21Reference document
Same NSN cross-reference
Reference document — Secondary reference
A1636AEA1CPC33Reference 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 A1987AEA1HPC27?
A1987AEA1HPC27 is a BOLT,MACHINE.
What parts can replace A1987AEA1HPC27?
There are 9 known substitutes for A1987AEA1HPC27: A865AEA1DPC33, A571A8EA1DPC43, AEA9611B and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1987AEA1HPC27?
A1987AEA1HPC27 is cataloged in the U.S. Government catalog under NSN 5306-00-297-7601. 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.