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Technical Data Sheet
772142-1 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

INSULATION SLEEVING,ELECTRICAL,S. Key specifications include color: BLACK, material: PLASTIC POLYOLEFIN LOCATION NOT OTHERWISE SPECIFIED, case_style: SQUARE, seal_width: 0.406 INCHES NOMINAL IN, flexibility: SEMIRIGID, temp_rating: -55.0 CELSIUS DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-772-1421, 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
772142-1
NSN: 5330-00-772-1421
FSC: 5330
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
colorBLACK
materialPLASTIC POLYOLEFIN LOCATION NOT OTHERWISE SPECIFIED
case_styleSQUARE
seal_width0.406 INCHES NOMINAL IN
flexibilitySEMIRIGID
temp_rating-55.0 CELSIUS DEGC
style_designatorBOOT-STRAIGHT
housing_bore_diameter4.125 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
sealing_element_styleANGULAR
environmental_protectionCORROSION RESISTANT AND FLAME RESISTANT AND MILDEW RESISTANT AND SOLVENT RESISTANT AND WATER RESISTANT
main_body_overall_length1.120 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN
NSN5330-00-772-1421
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 772142-1 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
SEALING ELEMENT STYLE: ANGULAR
HOUSING BORE DIAMETER: 4.125 INCHES NOMINAL IN
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
SEAL WIDTH: 0.406 INCHES NOMINAL IN
CASE STYLE: SQUARE
ACCOMMODATED SHAFT DIAMETER: 2.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER4.125 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEAL WIDTH0.406 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALSTEEL CASE
ACCOMMODATED SHAFT DIAMETER2.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5M250-8Interchangeable
interchangeable cross-reference
interchangeable
GB860AA-1-3Interchangeable
interchangeable cross-reference
interchangeable
407344Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 772142-1?
772142-1 is a INSULATION SLEEVING,ELECTRICAL,S.
What parts can replace 772142-1?
There are 3 known substitutes for 772142-1: 5M250-8, GB860AA-1-3, 407344. Substitute compatibility should be verified for your specific system.
What is the NSN for 772142-1?
772142-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-772-1421. This indicates validated use in U.S. government and defense supply chains.
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