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12310599 — GUARD LOCK ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12310599: GUARD LOCK ASSEMBLY.

The GUARD LOCK ASSEMBLY is a the manufacturer industrial component. Key specifications include end_item_identification: USED ON M1A1/M1A2 TANKS, general_characteristics_item_description: CONSISTS OF:PLUNGER 12310596;KNOB12310598;SPRING MS24585-C155;GUIDE 12310597. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-428-7658, 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
12310599
NSN: 5340-01-428-7658
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
end_item_identificationUSED ON M1A1/M1A2 TANKS
general_characteristics_item_descriptionCONSISTS OF:PLUNGER 12310596;KNOB12310598;SPRING MS24585-C155;GUIDE 12310597
NSN5340-01-428-7658
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12310599 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF:PLUNGER 12310596;KNOB12310598;SPRING MS24585-C155;GUIDE 12310597
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF:PLUNGER 12310596;KNOB12310598;SPRING MS24585-C155;GUIDE 12310597
END ITEM IDENTIFICATIONUSED ON M1A1/M1A2 TANKS
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 2
5340PL2183200Reference document
Same NSN cross-reference
Reference document — Informative reference only
5340014287658Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 12310599?
12310599 is a GUARD LOCK ASSEMBLY.
What parts can replace 12310599?
There are 2 known substitutes for 12310599: 5340PL2183200, 5340014287658. Substitute compatibility should be verified for your specific system.
What is the NSN for 12310599?
12310599 is cataloged in the U.S. Government catalog under NSN 5340-01-428-7658. 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.