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11578369 — PLUNGER,DETENT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11578369: PLUNGER,DETENT.

The PLUNGER,DETENT is a the manufacturer industrial component. Key specifications include length: 2.580 INCHES MINIMUM AND 2.590 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, diameter: 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, material: STEEL OVERALL, special_features: USED ON M109 HOWITZER FAMILY. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-174-7758, 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
11578369
NSN: 5340-00-174-7758
FSC: 5340 — Hardware, Commercial
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
length2.580 INCHES MINIMUM AND 2.590 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
diameter0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
materialSTEEL OVERALL
special_featuresUSED ON M109 HOWITZER FAMILY
supplementary_featuresCONSISTS OF:PLUNGER,P/N 11578366;SPRING CLAMP,P/N 11578367;PLATE,P/N 11578368;PIN,P/N MS171558.DIAMETER ABOVEIS GREATER,LESSER DIA.IS 0.307.
NSN5340-00-174-7758
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11578369 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
•
LENGTH: 2.580 INCHES MINIMUM AND 2.590 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
•
SUPPLEMENTARY FEATURES: CONSISTS OF:PLUNGER,P/N 11578366;SPRING CLAMP,P/N 11578367;PLATE,P/N 11578368;PIN,P/N MS171558.DIAMETER ABOVEIS GREATER,LESSER DIA.IS 0.307.
•
DIAMETER: 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
LENGTH2.580 INCHES MINIMUM AND 2.590 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
SUPPLEMENTARY FEATURESCONSISTS OF:PLUNGER,P/N 11578366;SPRING CLAMP,P/N 11578367;PLATE,P/N 11578368;PIN,P/N MS171558.DIAMETER ABOVEIS GREATER,LESSER DIA.IS 0.307.
DIAMETER0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
SPECIAL FEATURESUSED ON M109 HOWITZER FAMILY
MATERIALSTEEL OVERALL
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
1025001747758Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11578369?
11578369 is a PLUNGER,DETENT.
What parts can replace 11578369?
There is 1 known substitute for 11578369: 1025001747758. Substitute compatibility should be verified for your specific system.
What is the NSN for 11578369?
11578369 is cataloged in the U.S. Government catalog under NSN 5340-00-174-7758. 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.