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Technical Data Sheet
PartsTable / COMPONENT / 11028A
11028A ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

PARTS KIT,SEAL REPLACEMENT,MECHA. Key specifications include special_features: CHECK BALL AND SEAL; WEAPON SYSTEM ESSENTIAL, criticality_code_justification: FEAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-637-9344, 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
11028A
NSN: 5306-00-637-9344
FSC: 5306
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
special_featuresCHECK BALL AND SEAL; WEAPON SYSTEM ESSENTIAL
end_item_identificationNSN 2320-01-097-0260 HEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK);2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM)
criticality_code_justificationFEAT
NSN5306-00-637-9344
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11028A · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2A A
•
WIDTH BETWEEN FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.875 INCHES MINIMUM IN
•
HEAD STYLE: HEXAGON
•
FASTENER LENGTH: 2.000 INCHES NOMINAL IN
•
GRIP LENGTH: 1.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
THREAD CLASS2A A
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD LENGTH0.875 INCHES MINIMUM IN
HEAD STYLEHEXAGON
FASTENER LENGTH2.000 INCHES NOMINAL IN
GRIP LENGTH1.125 INCHES NOMINAL IN
FEATURES PROVIDEDFINISHED HEAD
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
4191AUpgraded Successor
successor cross-reference
successor
0251398Upgraded Successor
successor cross-reference
successor
179826Upgraded Successor
successor cross-reference
successor
23-10744-200Upgraded Successor
successor cross-reference
successor
2CT448Upgraded Successor
successor cross-reference
successor
MS90728-40Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11028A?
11028A is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What parts can replace 11028A?
There are 11 known substitutes for 11028A: 4191A, 0251398, 179826 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11028A?
11028A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-637-9344. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026