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5291604 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5291604: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include design_type: THREADED, thread_class: 2B, special_features: CHAIN 3.500 IN. LG,INCLUDES GASKET IN, specification/standard_data: 96906-MIL-STD-130 GOVERNMENT STANDARD, round_cap_outside_surface_condition: SMOOTH, thread_size_and_series/type_designator: 0.750-20 UNEF.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-726-1670, 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
5291604
NSN: 5340-00-726-1670
FSC: 5340 — Hardware, Commercial
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
design_typeTHREADED
thread_class2B
special_featuresCHAIN 3.500 IN. LG,INCLUDES GASKET IN
specification/standard_data96906-MIL-STD-130 GOVERNMENT STANDARD
round_cap_outside_surface_conditionSMOOTH
thread_size_and_series/type_designator0.750-20 UNEF
part_name_assigned_by_controlling_agencyCAP ASSEMBLY, SIZE 12
NSN5340-00-726-1670
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5291604 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
KEY FEATURES
•
DESIGN TYPE: THREADED
•
SPECIFICATION/STANDARD DATA: 96906-MIL-STD-130 GOVERNMENT STANDARD
•
THREAD CLASS: 2B
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.750-20 UNEF
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
SPECIFICATION/STANDARD DATA96906-MIL-STD-130 GOVERNMENT STANDARD
SPECIAL FEATURESCHAIN 3.500 IN. LG,INCLUDES GASKET IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP ASSEMBLY, SIZE 12
THREAD CLASS2B
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.750-20 UNEF
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 4
080F76200Reference document
Same NSN cross-reference
Reference document — Secondary reference
7261670Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5340007261670Reference document
Same NSN cross-reference
Reference document — Secondary reference
1097G6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5291604?
5291604 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 5291604?
There are 4 known substitutes for 5291604: 080F76200, 7261670, 5340007261670 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5291604?
5291604 is cataloged in the U.S. Government catalog under NSN 5340-00-726-1670. 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.