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1003-04-D — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1003-04-D: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, major_thickness: 0.281 INCHES NOMINAL IN, special_features: MATERIAL YELLOW BRASS-ASTM B16 3/4 DIA. WITH CENTER STEM HOLE, center_hole_diameter: 0.239 INCHES NOMINAL IN, cross-sectional_height: 0.070 INCHES NOMINAL IN, end_item_identification: VALVE,WATER REGULATING,MODEL 3/4,3.0 TON,SCAC.

This part is cataloged in the U.S. Government catalog under NSN 5331-01-584-6387, 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
1003-04-D
NSN: 5331-01-584-6387
NIINs: 015846387, 015846413
FSC: 5331 — O-ring
CAGE: 38450 — ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL (USA)
SPECIFICATIONS
materialCOPPER ALLOY
major_thickness0.281 INCHES NOMINAL IN
special_featuresMATERIAL YELLOW BRASS-ASTM B16 3/4 DIA. WITH CENTER STEM HOLE
center_hole_diameter0.239 INCHES NOMINAL IN
cross-sectional_height0.070 INCHES NOMINAL IN
end_item_identificationVALVE,WATER REGULATING,MODEL 3/4,3.0 TON,SCAC
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyINNER DIAHRAGM RETAINER
NSN5331-01-584-6387
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1003-04-D 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: 0.070 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.239 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.239 INCHES NOMINAL IN
END ITEM IDENTIFICATIONVALVE,WATER REGUALATIN,MODEL 3/4,3.0 TON,SCAC
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 1
1003-04-D FIND NO. 4Same 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 1003-04-D?
1003-04-D is a O-RING.
What parts can replace 1003-04-D?
There is 1 known substitute for 1003-04-D: 1003-04-D FIND NO. 4. Substitute compatibility should be verified for your specific system.
What is the NSN for 1003-04-D?
1003-04-D is cataloged in the U.S. Government catalog under NSN 5331-01-584-6387. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.