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3256981-1 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3256981-1: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: RUBBER SILICONE, design_type: FRICTION, special_features: EMER ALL JETT LEGEND ON CAP TOP,ORANGE-YELLOW COLOR NO 13538 WITH BLACK LETTERS PER FED-STD 595A A, round_cap_outside_surface_condition: SMOOTH, material_document_and_classification: ZZ-R-765B, CLASS 3B, GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE, opening_inside_diameter_for_which_designed: 0.956 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-081-3416, 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
3256981-1
NSN: 5340-01-081-3416
FSC: 5340 — Hardware, Commercial
CAGE: 09036 — SONFARREL INC. (USA)
SPECIFICATIONS
materialRUBBER SILICONE
design_typeFRICTION
special_featuresEMER ALL JETT LEGEND ON CAP TOP,ORANGE-YELLOW COLOR NO 13538 WITH BLACK LETTERS PER FED-STD 595A A
round_cap_outside_surface_conditionSMOOTH
material_document_and_classificationZZ-R-765B, CLASS 3B, GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE
opening_inside_diameter_for_which_designed0.956 INCHES NOMINAL IN
NSN5340-01-081-3416
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3256981-1 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: FRICTION
•
MATERIAL DOCUMENT AND CLASSIFICATION: ZZ-R-765B, CLASS 3B, GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.956 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765B, CLASS 3B, GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.956 INCHES NOMINAL IN
SPECIAL FEATURESEMER ALL JETT LEGEND ON CAP TOP,ORANGE-YELLOW COLOR NO 13538 WITH BLACK LETTERS PER FED-STD 595A A
MATERIALRUBBER SILICONE
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 2
14-60981-1 REV AReference document
Same NSN cross-reference
Reference document — Secondary reference
14-60981-1Same 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 3256981-1?
3256981-1 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 3256981-1?
There are 2 known substitutes for 3256981-1: 14-60981-1 REV A, 14-60981-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 3256981-1?
3256981-1 is cataloged in the U.S. Government catalog under NSN 5340-01-081-3416. This indicates validated use in U.S. government and defense supply chains.
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