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177972PC3 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

177972PC3: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: STEEL, design_type: FRICTION, overall_diameter: 0.980 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN, features_provided: SHOULDER, surface_treatment: OXIDE, opening_inside_diameter_for_which_designed: 0.817 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-381-7263, 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
177972PC3
NSN: 5340-00-381-7263
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL
design_typeFRICTION
overall_diameter0.980 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
features_providedSHOULDER
surface_treatmentOXIDE
opening_inside_diameter_for_which_designed0.817 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
NSN5340-00-381-7263
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 177972PC3 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: FRICTION
•
OVERALL DIAMETER: 0.980 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
•
FEATURES PROVIDED: SHOULDER
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.817 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
•
SURFACE TREATMENT: OXIDE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER0.980 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
FEATURES PROVIDEDSHOULDER
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.817 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
SURFACE TREATMENTOXIDE
MATERIALSTEEL
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 177972PC3?
177972PC3 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What is the NSN for 177972PC3?
177972PC3 is cataloged in the U.S. Government catalog under NSN 5340-00-381-7263. 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.