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12771F18A — CLAMP,BLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12771F18A: CLAMP,BLOCK.

The CLAMP,BLOCK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, overall_width: 2.540 INCHES NOMINAL IN, overall_length: 5.090 INCHES NOMINAL IN, style_designator: RECTANGULAR, material_document_and_classification: AMS 6061 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-362-0374, 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
12771F18A
NSN: 5340-01-362-0374
FSC: 5340 — Hardware, Commercial
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
overall_width2.540 INCHES NOMINAL IN
overall_length5.090 INCHES NOMINAL IN
style_designatorRECTANGULAR
material_document_and_classificationAMS 6061 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-362-0374
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12771F18A 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
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6061 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6061 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH5.090 INCHES NOMINAL IN
OVERALL WIDTH2.540 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 6061
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
12771F18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 12771F18A?
12771F18A is a CLAMP,BLOCK.
What parts can replace 12771F18A?
There is 1 known substitute for 12771F18A: 12771F18. Substitute compatibility should be verified for your specific system.
What is the NSN for 12771F18A?
12771F18A is cataloged in the U.S. Government catalog under NSN 5340-01-362-0374. 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.