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5288K28 — PLUNGER,QUICK RELEASE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5288K28: PLUNGER,QUICK RELEASE.

The PLUNGER,QUICK RELEASE is a the manufacturer industrial component. Key specifications include shape: ROUND, material: PLASTIC POLYESTER OVERALL, overall_length: 2.063 INCHES NOMINAL IN, special_features: 0.500 INCH MALE AND 0.500 THREADED END IN, end_item_identification: KC-135 ACFT, mounting_facility_diameter: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-517-3098, 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
5288K28
NSN: 5340-01-517-3098
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
shapeROUND
materialPLASTIC POLYESTER OVERALL
overall_length2.063 INCHES NOMINAL IN
special_features0.500 INCH MALE AND 0.500 THREADED END IN
end_item_identificationKC-135 ACFT
mounting_facility_diameter0.500 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNYLON FITTING
NSN5340-01-517-3098
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5288K28 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
•
MOUNTING FACILITY DIAMETER: 0.500 INCHES NOMINAL IN
•
SHAPE: ROUND
•
COLOR: NATURAL
•
MATERIAL: PLASTIC POLYESTER OVERALL
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY DIAMETER0.500 INCHES NOMINAL IN
SHAPEROUND
OVERALL LENGTH2.063 INCHES NOMINAL IN
COLORNATURAL
SPECIAL FEATURES0.500 INCH MALE AND 0.500 THREADED END IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNYLON FITTING
END ITEM IDENTIFICATIONKC-135 ACFT
MATERIALPLASTIC POLYESTER OVERALL
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 5288K28?
5288K28 is a PLUNGER,QUICK RELEASE.
What is the NSN for 5288K28?
5288K28 is cataloged in the U.S. Government catalog under NSN 5340-01-517-3098. 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.