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260835 — INSULATION,THERMAL,SPECIAL PURPO

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

260835: INSULATION,THERMAL,SPECIAL PURPO.

INSULATION,THERMAL,SPECIAL PURPO. Key specifications include thickness: 0.250 INCHES NOMINAL IN, layer_quantity: 1 LOCATION NOT OTHERWISE SPECIFIED, layer_thickness: 0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, special_features: USED ON F/A-18 AIRCRAFT, AFT WINDSCREEN, end_item_identification: FORWARD REPAIR SYSTEM, MODEL M7 (FRS) 4940-01-463-7940. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-641-6918, 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
260835
NSN: 5330-00-641-6918
NIINs: 006416918, 014153337, 014749294
FSC: 5330 — Packing and Gasket Materials
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
thickness0.250 INCHES NOMINAL IN
layer_quantity1 LOCATION NOT OTHERWISE SPECIFIED
layer_thickness0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
special_featuresUSED ON F/A-18 AIRCRAFT, AFT WINDSCREEN
end_item_identificationFORWARD REPAIR SYSTEM, MODEL M7 (FRS) 4940-01-463-7940
NSN5330-00-641-6918
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 260835 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
•
CROSS-SECTIONAL THICKNESS: 0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: HOLLOW
•
OUTSIDE DIAMETER: 0.938 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 0.813 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 321 OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEHOLLOW
OUTSIDE DIAMETER0.938 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN
APERTURE DIAMETER0.813 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
MATERIALSTEEL COMP 321 OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
SAE-AS9142Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS9142-029Reference document
Same NSN cross-reference
Reference document — Secondary reference
940-3-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
EON-000938-02-03-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 260835?
260835 is a INSULATION,THERMAL,SPECIAL PURPO.
What parts can replace 260835?
There are 4 known substitutes for 260835: SAE-AS9142, MS9142-029, 940-3-3 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 260835?
260835 is cataloged in the U.S. Government catalog under NSN 5330-00-641-6918. This indicates validated use in U.S. government and defense supply chains.
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