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PartsTable / COMPONENT / 1001766
1001766 ✓ Verified by PartsTable
3M · 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 HINGE,ACCESS DOOR is a 3M industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 3.125 INCHES NOMINAL IN, head_height: 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN, grip_diameter: 0.555 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN, thread_length: 4.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-533-1273, 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
1001766
NSN: 5340-01-533-1273
FSC: 5340
CAGE: 92878 — HDT EXPEDITIONARY SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length3.125 INCHES NOMINAL IN
head_height0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
grip_diameter0.555 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
thread_length4.500 INCHES NOMINAL IN
fastener_length4.400 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
special_featuresGRADE 8 PLAIN FINISH HEX CAP SCREW
thread_directionRIGHT-HAND
width_between_flats0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
end_item_identificationPU-820/T GENERATOR SET
thread_quantity_per_inch18
NSN5340-01-533-1273
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1001766 MFR: 3M ⚠ 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 IDENTIFICATIONPU-820/T GENERATOR SET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
T-3099Upgraded Successor
successor cross-reference
successor
2537-DD4-801020Upgraded Successor
successor cross-reference
successor
18271Upgraded Successor
successor cross-reference
successor
2001232 REV T ITEM 62Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1001766?
1001766 is a HINGE,ACCESS DOOR manufactured by 3M.
What parts can replace 1001766?
There are 4 known substitutes for 1001766: T-3099, 2537-DD4-801020, 18271 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1001766?
1001766 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-533-1273. 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