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PartsTable / COMPONENT / 126-2821
126-2821 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BOLT,LOCK is a the manufacturer industrial component. Key specifications include special_features: NHA IS DUAL AXIS CONTROLLER, end_item_identification: 3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80, part_name_assigned_by_controlling_agency: SLIDING LOCKSCREW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-547-9783, 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
126-2821
NSN: 5340-01-547-9783
FSC: 5340
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
special_featuresNHA IS DUAL AXIS CONTROLLER
end_item_identification3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
part_name_assigned_by_controlling_agencySLIDING LOCKSCREW
NSN5340-01-547-9783
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 126-2821 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
PART NAME ASSIGNED BY CONTROLLING AGENCYSLIDING LOCKSCREW
SPECIAL FEATURESNHA IS DUAL AXIS CONTROLLER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
9B9193Interchangeable
interchangeable cross-reference
interchangeable
GPW10141Interchangeable
interchangeable cross-reference
interchangeable
X489Interchangeable
interchangeable cross-reference
interchangeable
540010Interchangeable
interchangeable cross-reference
interchangeable
1002-34Interchangeable
interchangeable cross-reference
interchangeable
MS51382-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 126-2821?
126-2821 is a BOLT,LOCK.
What parts can replace 126-2821?
There are 8 known substitutes for 126-2821: 9B9193, GPW10141, X489 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 126-2821?
126-2821 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-547-9783. 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