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D254-472 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

D254-472: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: IRON, overall_diameter: 3.312 INCHES NOMINAL IN, special_features: MALLEABLE IRON FE0125 OR FE0061, width_across_flats: 6.000 INCHES NOMINAL IN, inside_diameter_length: 3.750 INCHES NOMINAL IN, end_item_identification: 2320014525579. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-496-3148, 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
D254-472
NSN: 5340-01-496-3148
FSC: 5340 — Hardware, Commercial
CAGE: 03533 — CRANE CARRIER COMPANY, LLC (USA)
SPECIFICATIONS
materialIRON
overall_diameter3.312 INCHES NOMINAL IN
special_featuresMALLEABLE IRON FE0125 OR FE0061
width_across_flats6.000 INCHES NOMINAL IN
inside_diameter_length3.750 INCHES NOMINAL IN
end_item_identification2320014525579
round_cap_outside_surface_conditionSMOOTH
tube_outside_diameter_for_which_designed3.219 INCHES NOMINAL IN
opening_inside_diameter_for_which_designed1.750 INCHES NOMINAL IN
NSN5340-01-496-3148
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D254-472 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
•
WIDTH ACROSS FLATS: 6.000 INCHES NOMINAL IN
•
OVERALL DIAMETER: 3.312 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 3.219 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 1.750 INCHES NOMINAL IN
•
MATERIAL: IRON
•
INSIDE DIAMETER LENGTH: 3.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS6.000 INCHES NOMINAL IN
OVERALL DIAMETER3.312 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED3.219 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED1.750 INCHES NOMINAL IN
SPECIAL FEATURESMALLEABLE IRON FE0125 OR FE0061
END ITEM IDENTIFICATION2320014525579
MATERIALIRON
INSIDE DIAMETER LENGTH3.750 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D254-472?
D254-472 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for D254-472?
D254-472 is cataloged in the U.S. Government catalog under NSN 5340-01-496-3148. 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.