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4403544 PART 182 — HOLDER,SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4403544 PART 182: HOLDER,SPRING.

The HOLDER,SPRING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 511. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-442-5481, 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
4403544 PART 182
NSN: 5340-01-442-5481
FSC: 5340 — Hardware, Commercial
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY 511
NSN5340-01-442-5481
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4403544 PART 182 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
•
MATERIAL: COPPER ALLOY 511
TECHNICAL CHARACTERISTICS
MATERIALCOPPER ALLOY 511
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 3
123-4403544 PART 182Reference document
Same NSN cross-reference
Reference document — Secondary reference
123-5941945 PART 182Reference document
Same NSN cross-reference
Reference document — Secondary reference
123-5941946 PART 182Reference 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 4403544 PART 182?
4403544 PART 182 is a HOLDER,SPRING.
What parts can replace 4403544 PART 182?
There are 3 known substitutes for 4403544 PART 182: 123-4403544 PART 182, 123-5941945 PART 182, 123-5941946 PART 182. Substitute compatibility should be verified for your specific system.
What is the NSN for 4403544 PART 182?
4403544 PART 182 is cataloged in the U.S. Government catalog under NSN 5340-01-442-5481. 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.