6937523 ITEM 81 — SEAT,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

6937523 ITEM 81: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON SEAT, style_designator: PLAIN, body_inside_diameter: 10.375 INCHES NOMINAL IN, body_outside_diameter: 11.905 INCHES NOMINAL IN, seating_surface_shape: RADIAL, end_item_identification: 4820-01-491-1347 VALVE, SAFETY RELIEF P/N 6937523 ASSEMBLY 100. W/S SEAWOLF CLASS SSN W.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-493-7963, 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

6937523 ITEM 81

NSN: 4820-01-493-7963
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)

SPECIFICATIONS

material	PLASTIC POLYAMIDE NYLON SEAT
special_features	USED ON MOTOR, TLTA S. MADE FROM 1-3/8 INCH THICK SHEET. HAS 9 GROOVES 1/32 R LOCATED RADIALLY EQUALLY SPACED AND MACHINED ON BOTH SURFACES IN
style_designator	PLAIN
body_inside_diameter	10.375 INCHES NOMINAL IN
body_outside_diameter	11.905 INCHES NOMINAL IN
seating_surface_shape	RADIAL
end_item_identification	4820-01-491-1347 VALVE, SAFETY RELIEF P/N 6937523 ASSEMBLY 100. W/S SEAWOLF CLASS SSN W
seal_accommodation_type	GROOVED
material_document_and_classification	L-P-410 TY 6/6 ASSN STD SINGLE MATERIAL RESPONSE SEAT
NSN	4820-01-493-7963

COMPONENT DIAGRAM

KEY FEATURES

•

BODY OUTSIDE DIAMETER: 11.905 INCHES NOMINAL IN

•

SEAL ACCOMMODATION TYPE: GROOVED

•

STYLE DESIGNATOR: PLAIN

•

MATERIAL DOCUMENT AND CLASSIFICATION: L-P-410 TY 6/6 ASSN STD SINGLE MATERIAL RESPONSE SEAT

•

BODY INSIDE DIAMETER: 10.375 INCHES NOMINAL IN

•

MATERIAL: PLASTIC POLYAMIDE NYLON SEAT

TECHNICAL CHARACTERISTICS

BODY OUTSIDE DIAMETER	11.905 INCHES NOMINAL IN
SEAL ACCOMMODATION TYPE	GROOVED
STYLE DESIGNATOR	PLAIN
MATERIAL DOCUMENT AND CLASSIFICATION	L-P-410 TY 6/6 ASSN STD SINGLE MATERIAL RESPONSE SEAT
BODY INSIDE DIAMETER	10.375 INCHES NOMINAL IN
SPECIAL FEATURES	USED ON MOTOR, TLTA S. MADE FROM 1-3/8 INCH THICK SHEET. HAS 9 GROOVES 1/32 R LOCATED RADIALLY EQUALLY SPACED AND MACHINED ON BOTH SURFACES IN
END ITEM IDENTIFICATION	4820-01-491-1347 VALVE, SAFETY RELIEF P/N 6937523 ASSEMBLY 100. W/S SEAWOLF CLASS SSN W
MATERIAL	PLASTIC POLYAMIDE NYLON SEAT
SEATING SURFACE SHAPE	RADIAL

SUBSTITUTES & CROSS-REFERENCES 3

6937523Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

L-P-410 TYPE 6/Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

L-P-410 TYPE 6/6Reference document

Same NSN cross-reference

Reference document — Identification 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 6937523 ITEM 81?

6937523 ITEM 81 is a SEAT,VALVE.

What parts can replace 6937523 ITEM 81?

There are 3 known substitutes for 6937523 ITEM 81: 6937523, L-P-410 TYPE 6/, L-P-410 TYPE 6/6. Substitute compatibility should be verified for your specific system.

What is the NSN for 6937523 ITEM 81?

6937523 ITEM 81 is cataloged in the U.S. Government catalog under NSN 4820-01-493-7963. This indicates validated use in U.S. government and defense supply chains.

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