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21681-23 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21681-23: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC EPOXY AND PAPER OVERALL, peripheral_diameter: 1.490 INCHES MINIMUM AND 1.494 INCHES MAXIMUM IN, center_hole_diameter: 1.250 INCHES NOMINAL IN, cross-sectional_height: 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-150-5950, 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
21681-23
NSN: 5330-01-150-5950
FSC: 5330 — Packing and Gasket Materials
CAGE: 02886 — DODGE-WASMUND MANUFACTURING INC (USA)
SPECIFICATIONS
materialPLASTIC EPOXY AND PAPER OVERALL
peripheral_diameter1.490 INCHES MINIMUM AND 1.494 INCHES MAXIMUM IN
center_hole_diameter1.250 INCHES NOMINAL IN
cross-sectional_height0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
NSN5330-01-150-5950
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21681-23 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
•
CROSS-SECTIONAL HEIGHT: 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 1.490 INCHES MINIMUM AND 1.494 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.250 INCHES NOMINAL IN
•
MATERIAL: PLASTIC EPOXY AND PAPER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER1.490 INCHES MINIMUM AND 1.494 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.250 INCHES NOMINAL IN
MATERIALPLASTIC EPOXY AND PAPER OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
503-870Reference document
Same NSN cross-reference
Reference document — Secondary reference
593A1-870Reference document
Same NSN cross-reference
Reference document — Secondary reference
60-593 PIECE 870Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21681-23?
21681-23 is a RETAINER,PACKING.
What parts can replace 21681-23?
There are 3 known substitutes for 21681-23: 503-870, 593A1-870, 60-593 PIECE 870. Substitute compatibility should be verified for your specific system.
What is the NSN for 21681-23?
21681-23 is cataloged in the U.S. Government catalog under NSN 5330-01-150-5950. This indicates validated use in U.S. government and defense supply chains.
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