PartsTable
Technical Data Sheet
MS21315-1 ✓ 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

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: 0.375 INCHES NOMINAL IN, overall_length: 0.889 INCHES NOMINAL IN, style_designator: CURVED ARCH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-495-3207, 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
MS21315-1
NSN: 5340-00-495-3207
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.375 INCHES NOMINAL IN
overall_length0.889 INCHES NOMINAL IN
style_designatorCURVED ARCH
surface_treatmentCADMIUM AND CHROMATE
material_thickness0.038 INCHES NOMINAL IN
mounting_hole_size0.173 INCHES NOMINAL IN
inside_diameter/arch_length0.125 INCHES NOMINAL IN
material_document_and_classificationQQ-S-698,COLD ROLLED STRIP,TEMPERS NO. 2,3,4,OR 5 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
distance_between_mounting_hole_centers0.513 INCHES NOMINAL IN
NSN5340-00-495-3207
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS21315-1 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
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-698,COLD ROLLED STRIP,TEMPERS NO. 2,3,4,OR 5 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATOR: CURVED ARCH
SURFACE TREATMENT: CADMIUM AND CHROMATE
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
MOUNTING PAD: NOT INCLUDED
CUSHION: NOT INCLUDED
MOUNTING HOLE SIZE: 0.173 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698,COLD ROLLED STRIP,TEMPERS NO. 2,3,4,OR 5 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATORCURVED ARCH
SURFACE TREATMENTCADMIUM AND CHROMATE
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
MOUNTING PADNOT INCLUDED
OVERALL WIDTH0.375 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
MOUNTING HOLE SIZE0.173 INCHES NOMINAL IN
INSIDE DIAMETER/ARCH LENGTH0.125 INCHES NOMINAL IN
MATERIAL THICKNESS0.038 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
FF-S-760Upgraded Successor
successor cross-reference
successor
167A33Upgraded Successor
successor cross-reference
successor
NASM760-TYP1, STYB, 5/16Upgraded Successor
successor cross-reference
successor
PTMC75Upgraded Successor
successor cross-reference
successor
NASM760Upgraded Successor
successor cross-reference
successor
MS35140-16Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21315-1?
MS21315-1 is a STRAP,RETAINING.
What parts can replace MS21315-1?
There are 10 known substitutes for MS21315-1: FF-S-760, 167A33, NASM760-TYP1, STYB, 5/16 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21315-1?
MS21315-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-495-3207. This indicates validated use in U.S. government and defense supply chains.
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