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Technical Data Sheet
PartsTable / COMPONENT / MS25281R20
MS25281R20 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.198 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN, material: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL, overall_width: 0.495 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, special_features: COLOR NATURAL, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-833-4058, 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
MS25281R20
NSN: 5340-00-833-4058
FSC: 5340
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
diameter0.198 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
materialPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
overall_width0.495 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
special_featuresCOLOR NATURAL
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.085 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
loop_inside_diameter1.250 INCHES NOMINAL IN
material_document_and_classificationASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_loop_center_to_tongue_end1.351 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole1.066 INCHES NOMINAL IN
NSN5340-00-833-4058
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS25281R20 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
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 1.066 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
•
STYLE DESIGNATOR: SINGLE LOOP
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.351 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE1.066 INCHES NOMINAL IN
OVERALL WIDTH0.495 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
LOOP INSIDE DIAMETER1.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
STYLE DESIGNATORSINGLE LOOP
DISTANCE FROM LOOP CENTER TO TONGUE END1.351 INCHES NOMINAL IN
SPECIAL FEATURESCOLOR NATURAL
DIAMETER0.198 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
TONGUE HOLE TYPEROUND, UNTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
HP2NUpgraded Successor
successor cross-reference
successor
2994556-16Upgraded Successor
successor cross-reference
successor
SAE-AS25281Upgraded Successor
successor cross-reference
successor
AS23190Upgraded Successor
successor cross-reference
successor
10117455Upgraded Successor
successor cross-reference
successor
MS25281R18Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS25281R20?
MS25281R20 is a CLAMP,LOOP.
What parts can replace MS25281R20?
There are 23 known substitutes for MS25281R20: HP2N, 2994556-16, SAE-AS25281 and 20 more. Substitute compatibility should be verified for your specific system.
Is MS25281R20 still available?
MS25281R20 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026