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N-736 PIECE 11 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

N-736 PIECE 11: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: COPPER ALLOY 922, design_type: SOLID, overall_height: 0.7500 INCHES NOMINAL IN, second_step_diameter: 6.0000 INCHES NOMINAL IN, material_document_and_classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-421-1878, 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
N-736 PIECE 11
NSN: 5340-01-421-1878
FSC: 5340 — Hardware, Commercial
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922
design_typeSOLID
overall_height0.7500 INCHES NOMINAL IN
second_step_diameter6.0000 INCHES NOMINAL IN
material_document_and_classificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-421-1878
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N-736 PIECE 11 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: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE
•
SECOND STEP DIAMETER: 6.0000 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY 922
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.7500 INCHES NOMINAL IN
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE
SECOND STEP DIAMETER6.0000 INCHES NOMINAL IN
MATERIALCOPPER ALLOY 922
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 1
231-373-25Reference 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 N-736 PIECE 11?
N-736 PIECE 11 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace N-736 PIECE 11?
There is 1 known substitute for N-736 PIECE 11: 231-373-25. Substitute compatibility should be verified for your specific system.
What is the NSN for N-736 PIECE 11?
N-736 PIECE 11 is cataloged in the U.S. Government catalog under NSN 5340-01-421-1878. 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.