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PartsTable / O-RING / 21487-400 FIND 5
21487-400 FIND 5 ✓ 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 COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, connection_type: UNTHREADED EXTERNAL TUBE ALL ENDS, connection_style: GROOVED (TUBE) ALL ENDS, surface_treatment: ANODIZE OVERALL, nominal_overall_length: 0.876 INCHES IN, end_item_identification: SEAWOLF CLASS SSN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-167-5175, 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
21487-400 FIND 5
NSN: 5331-00-167-5175
FSC: 5331 — O-RING
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
connection_typeUNTHREADED EXTERNAL TUBE ALL ENDS
connection_styleGROOVED (TUBE) ALL ENDS
surface_treatmentANODIZE OVERALL
nominal_overall_length0.876 INCHES IN
end_item_identificationSEAWOLF CLASS SSN
nominal_outside_diameter_tube_accommodated0.897 INCHES ALL ENDS IN
NSN5331-00-167-5175
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21487-400 FIND 5 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: RUBBER FLUOROCARBON CLASS FPM
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.915 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER FLUOROCARBON CLASS FPM
ELONGATION PERCENTAGE125 MAXIMUM
END ITEM IDENTIFICATIONMRAP - RG-33 AUV; MRAP - M-ATV
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.915 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
CA030166Interchangeable
interchangeable cross-reference
interchangeable
3912Interchangeable
interchangeable cross-reference
interchangeable
CV2031340-8301VEQPC49Interchangeable
interchangeable cross-reference
interchangeable
201-365PC70Interchangeable
interchangeable cross-reference
interchangeable
201-370PC49Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-95Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21487-400 FIND 5?
21487-400 FIND 5 is a COUPLING,TUBE.
What parts can replace 21487-400 FIND 5?
There are 29 known substitutes for 21487-400 FIND 5: CA030166, 3912, CV2031340-8301VEQPC49 and 26 more. Substitute compatibility should be verified for your specific system.
Is 21487-400 FIND 5 still available?
21487-400 FIND 5 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