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4538B68 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4538B68: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: STEEL LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.750 INCHES NOMINAL IN, overall_length: 2.440 INCHES NOMINAL IN, special_features: ITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER PHILADELPHIAPRODUCTION STANDARD PO0467NRP. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-325-2892, 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
4538B68
NSN: 5340-01-325-2892
FSC: 5340 — Hardware, Commercial
CAGE: 04808 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV CURTISS-WRIGHT EMD (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.750 INCHES NOMINAL IN
overall_length2.440 INCHES NOMINAL IN
special_featuresITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER PHILADELPHIAPRODUCTION STANDARD PO0467NRP
style_designatorDOUBLE ARCH
material_thickness0.090 INCHES NOMINAL IN
mounting_hole_size0.186 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
special_test_featuresSPECIAL QUALITY CONTROL TESTING
inside_diameter/arch_length0.820 INCHES NOMINAL IN
departure_from_cited_documentAS MODIFIED BY PACKAGING REQUIREMENTS
NSN5340-01-325-2892
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4538B68 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
•
MOUNTING HOLE SIZE: 0.186 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
•
MOUNTING PAD: NOT INCLUDED
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
STYLE DESIGNATOR: DOUBLE ARCH
•
DISTANCE BETWEEN BASE AND INSIDE OF LARGE ARCH: 0.430 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 900A273 OR 4937A50,WESTINGHOUSE ELEC CORP MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.186 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
MOUNTING PADNOT INCLUDED
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
CRITICALITY CODE JUSTIFICATIONZZZY
STYLE DESIGNATORDOUBLE ARCH
DISTANCE BETWEEN BASE AND INSIDE OF LARGE ARCH0.430 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION900A273 OR 4937A50,WESTINGHOUSE ELEC CORP MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
OVERALL LENGTH2.440 INCHES NOMINAL IN
OVERALL WIDTH0.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.090 INCHES NOMINAL IN
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
LL-HX6-7821Reference document
Same NSN cross-reference
Reference document — Secondary reference
PO0467NRPSame 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 4538B68?
4538B68 is a STRAP,RETAINING.
What parts can replace 4538B68?
There are 2 known substitutes for 4538B68: LL-HX6-7821, PO0467NRP. Substitute compatibility should be verified for your specific system.
What is the NSN for 4538B68?
4538B68 is cataloged in the U.S. Government catalog under NSN 5340-01-325-2892. This indicates validated use in U.S. government and defense supply chains.
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