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6531-21-202-7101 — STRIKE,CATCH

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6531-21-202-7101: STRIKE,CATCH.

The STRIKE,CATCH is a the manufacturer industrial component. Key specifications include diameter: 0.630 INCHES NOMINAL IN, material: UNABLE TO DECODE, overall_width: 1.400 INCHES NOMINAL IN, overall_length: 3.640 INCHES NOMINAL IN, special_features: SLOTS 0.218 IN. W BY 0.500 IN.

LG IN, mounting_facility: COUNTERSUNK HOLE AND MOUNTING SLOTS. This part is cataloged in the U.S. Government catalog under NSN 5340-01-344-0832, 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
6531-21-202-7101
NSN: 5340-01-344-0832
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
diameter0.630 INCHES NOMINAL IN
materialUNABLE TO DECODE
overall_width1.400 INCHES NOMINAL IN
overall_length3.640 INCHES NOMINAL IN
special_featuresSLOTS 0.218 IN. W BY 0.500 IN. LG IN
mounting_facilityCOUNTERSUNK HOLE AND MOUNTING SLOTS
surface_treatmentUNABLE TO DECODE
material_thickness0.190 INCHES NOMINAL IN
first_surface_hole_size0.128 INCHES NOMINAL IN
first_surface_hole_quantity4
NSN5340-01-344-0832
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6531-21-202-7101 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
•
DIAMETER: 0.630 INCHES NOMINAL IN
•
FIRST SURFACE HOLE SIZE: 0.128 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.190 INCHES NOMINAL IN
•
MOUNTING FACILITY: COUNTERSUNK HOLE AND MOUNTING SLOTS
•
SURFACE TREATMENT: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS
DIAMETER0.630 INCHES NOMINAL IN
OVERALL LENGTH3.640 INCHES NOMINAL IN
OVERALL WIDTH1.400 INCHES NOMINAL IN
FIRST SURFACE HOLE SIZE0.128 INCHES NOMINAL IN
MATERIAL THICKNESS0.190 INCHES NOMINAL IN
MOUNTING FACILITYCOUNTERSUNK HOLE AND MOUNTING SLOTS
SPECIAL FEATURESSLOTS 0.218 IN. W BY 0.500 IN. LG IN
SURFACE TREATMENTUNABLE TO DECODE
MATERIALUNABLE TO DECODE
FIRST SURFACE HOLE QUANTITY4
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6531-21-202-7101?
6531-21-202-7101 is a STRIKE,CATCH.
What is the NSN for 6531-21-202-7101?
6531-21-202-7101 is cataloged in the U.S. Government catalog under NSN 5340-01-344-0832. 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.