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HC255A — CATCH,CLAMPING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HC255A: CATCH,CLAMPING.

The CATCH,CLAMPING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BASE, design_type: LOOP ENGAGING, hole_diameter: 0.144 INCHES NOMINAL IN, overall_width: 0.900 INCHES NOMINAL IN, overall_height: 0.500 INCHES NOMINAL IN, overall_length: 2.440 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-220-3877, 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
HC255A
NSN: 5340-00-220-3877
FSC: 5340 — Hardware, Commercial
CAGE: 1RRL5 — NIELSEN HARDWARE CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BASE
design_typeLOOP ENGAGING
hole_diameter0.144 INCHES NOMINAL IN
hole_quantity2
overall_width0.900 INCHES NOMINAL IN
overall_height0.500 INCHES NOMINAL IN
overall_length2.440 INCHES NOMINAL IN
operation_methodLEVER
style_designatorLEVER
engaging_surface_width0.750 INCHES NOMINAL IN
engaging_surface_thickness0.075 INCHES NOMINAL IN
NSN5340-00-220-3877
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HC255A 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: LOOP ENGAGING
•
ENGAGING SURFACE WIDTH: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEVER
•
ENGAGING SURFACE THICKNESS: 0.075 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY BASE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.500 INCHES NOMINAL IN
DESIGN TYPELOOP ENGAGING
ENGAGING SURFACE WIDTH0.750 INCHES NOMINAL IN
STYLE DESIGNATORLEVER
OVERALL LENGTH2.440 INCHES NOMINAL IN
OVERALL WIDTH0.900 INCHES NOMINAL IN
ENGAGING SURFACE THICKNESS0.075 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY BASE
MATERIALALUMINUM ALLOY LEVER
MATERIALSTEEL CORROSION RESISTING LOOP
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
C5-15-5513Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 HC255A?
HC255A is a CATCH,CLAMPING.
What parts can replace HC255A?
There is 1 known substitute for HC255A: C5-15-5513. Substitute compatibility should be verified for your specific system.
What is the NSN for HC255A?
HC255A is cataloged in the U.S. Government catalog under NSN 5340-00-220-3877. 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.