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6448K73 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6448K73: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM, special_features: CHEMICAL RESISTANT, MAXIMUM TEMP. 200 DEGREES F, features_provided: ROHS DIRECTIVE COMPLIANCE, inside_diameter_length: 1.0 INCHES NOMINAL IN, round_cap_outside_surface_condition: SMOOTH, part_name_assigned_by_controlling_agency: PUSH-ON ROUND CAP.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-682-0828, 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
6448K73
NSN: 5340-01-682-0828
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
special_featuresCHEMICAL RESISTANT, MAXIMUM TEMP. 200 DEGREES F
features_providedROHS DIRECTIVE COMPLIANCE
inside_diameter_length1.0 INCHES NOMINAL IN
round_cap_outside_surface_conditionSMOOTH
part_name_assigned_by_controlling_agencyPUSH-ON ROUND CAP
opening_inside_diameter_for_which_designed0.140625 INCHES NOMINAL IN
NSN5340-01-682-0828
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6448K73 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
•
FEATURES PROVIDED: ROHS DIRECTIVE COMPLIANCE
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.140625 INCHES NOMINAL IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
•
INSIDE DIAMETER LENGTH: 1.0 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
FEATURES PROVIDEDROHS DIRECTIVE COMPLIANCE
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.140625 INCHES NOMINAL IN
SPECIAL FEATURESCHEMICAL RESISTANT, MAXIMUM TEMP. 200 DEGREES F
PART NAME ASSIGNED BY CONTROLLING AGENCYPUSH-ON ROUND CAP
MATERIALRUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
INSIDE DIAMETER LENGTH1.0 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6448K73?
6448K73 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 6448K73?
6448K73 is cataloged in the U.S. Government catalog under NSN 5340-01-682-0828. 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.