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K91-0031 — WASHER,SPRING TENSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

K91-0031: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include height: 0.937 INCHES NOMINAL IN, material: PLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR INTERMEDIATE RING, inside_diameter: 0.278 INCHES NOMINAL IN, outside_diameter: 0.687 INCHES NOMINAL IN, fsc_application_data: ELECTRICAL HARDWARESUPPLIES, cross-sectional_shape_style: SQUARE/RECTANGULAR AND ANGLE INTERMEDIATE RING. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-202-2584, 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
K91-0031
NSN: 5330-00-202-2584
NIINs: 002022584, 012589040
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
height0.937 INCHES NOMINAL IN
materialPLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR INTERMEDIATE RING
inside_diameter0.278 INCHES NOMINAL IN
outside_diameter0.687 INCHES NOMINAL IN
fsc_application_dataELECTRICAL HARDWARESUPPLIES
intermediate_ring_quantity2
cross-sectional_shape_styleSQUARE/RECTANGULAR AND ANGLE INTERMEDIATE RING
material_document_and_classificationMIL-S-6855,GR 40 MIL SPEC 2ND MATERIAL RESPONSE INTERMEDIATE RING
NSN5330-00-202-2584
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: K91-0031 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
•
FSC APPLICATION DATA: ELECTRICAL HARDWARESUPPLIES
•
INTERMEDIATE RING QUANTITY: 2
•
OUTSIDE DIAMETER: 0.687 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6855,GR 40 MIL SPEC 2ND MATERIAL RESPONSE INTERMEDIATE RING
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR AND ANGLE INTERMEDIATE RING
•
INSIDE DIAMETER: 0.278 INCHES NOMINAL IN
•
HEIGHT: 0.937 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR INTERMEDIATE RING
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAELECTRICAL HARDWARESUPPLIES
INTERMEDIATE RING QUANTITY2
OUTSIDE DIAMETER0.687 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6855,GR 40 MIL SPEC 2ND MATERIAL RESPONSE INTERMEDIATE RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR AND ANGLE INTERMEDIATE RING
INSIDE DIAMETER0.278 INCHES NOMINAL IN
HEIGHT0.937 INCHES NOMINAL IN
MATERIALPLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR INTERMEDIATE RING
MATERIALPLASTIC POLYAMIDE NYLON TOP RING
MATERIALPLASTIC POLYAMIDE NYLON BOTTOM RING
SUBSTITUTES & CROSS-REFERENCES 5
M19622/16-0005Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
M19622/16-03Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-S-19622/16Reference document
Same NSN cross-reference
Reference document — Identification reference
MIL-S-19622Reference document
Same NSN cross-reference
Reference document — Secondary reference
5330PL1204629Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is K91-0031?
K91-0031 is a WASHER,SPRING TENSION.
What parts can replace K91-0031?
There are 5 known substitutes for K91-0031: M19622/16-0005, M19622/16-03, MIL-S-19622/16 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K91-0031?
K91-0031 is cataloged in the U.S. Government catalog under NSN 5330-00-202-2584. 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.