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12008057 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12008057: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL, design_type: THREADED, thread_class: 2A A, overall_diameter: 1.380 INCHES NOMINAL IN, surface_treatment: ENAMEL, inside_diameter_length: 1.420 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-035-2195, 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
12008057
NSN: 5340-01-035-2195
FSC: 5340 — Hardware, Commercial
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL
design_typeTHREADED
thread_class2A A
overall_diameter1.380 INCHES NOMINAL IN
surface_treatmentENAMEL
inside_diameter_length1.420 INCHES NOMINAL IN
round_cap_outside_surface_conditionKNURLED
thread_size_and_series/type_designator1.250-12 UNF
NSN5340-01-035-2195
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12008057 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: THREADED
•
OVERALL DIAMETER: 1.380 INCHES NOMINAL IN
•
SURFACE TREATMENT: ENAMEL
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1.250-12 UNF
•
INSIDE DIAMETER LENGTH: 1.420 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER1.380 INCHES NOMINAL IN
SURFACE TREATMENTENAMEL
THREAD CLASS2A A
MATERIALSTEEL
THREAD SIZE AND SERIES/TYPE DESIGNATOR1.250-12 UNF
INSIDE DIAMETER LENGTH1.420 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
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

No substitute or cross-reference records for this part.

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 12008057?
12008057 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 12008057?
12008057 is cataloged in the U.S. Government catalog under NSN 5340-01-035-2195. 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.