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55-40-0004-1 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

55-40-0004-1: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include special_features: TO. NAVAIR 19-40-523 FIG 3 IND 5, end_item_identification: MID RANGE TOW TRUCK, part_name_assigned_by_controlling_agency: CAP,TIRE VALVE FRONT.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-564-9719, 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
55-40-0004-1
NSN: 5340-01-564-9719
FSC: 5340 — Hardware, Commercial
CAGE: 4TVG2 — TEXTRON GROUND SUPPORT EQUIPMENT INC. DIV TEXTRON GSE (USA)
SPECIFICATIONS
special_featuresTO. NAVAIR 19-40-523 FIG 3 IND 5
end_item_identificationMID RANGE TOW TRUCK
part_name_assigned_by_controlling_agencyCAP,TIRE VALVE FRONT
NSN5340-01-564-9719
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55-40-0004-1 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESTO. NAVAIR 19-40-523 FIG 3 IND 5
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP,TIRE VALVE FRONT
END ITEM IDENTIFICATIONMID RANGE TOW TRUCK
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
50-40-0006Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55-40-0004-1?
55-40-0004-1 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 55-40-0004-1?
There is 1 known substitute for 55-40-0004-1: 50-40-0006. Substitute compatibility should be verified for your specific system.
What is the NSN for 55-40-0004-1?
55-40-0004-1 is cataloged in the U.S. Government catalog under NSN 5340-01-564-9719. This indicates validated use in U.S. government and defense supply chains.
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