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123-027-5 — COUPLING,TUBE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

123-027-5: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include end_item_identification: 428D,LOADER/BACKHOE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-046-8007, 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
123-027-5
NSN: 5331-01-046-8007
NIINs: 010468007, 015058970, 015748779
FSC: 5331 — O-ring
CAGE: 28953 — RIX INDUSTRIES (USA)
SPECIFICATIONS
end_item_identification428D,LOADER/BACKHOE
NSN5331-01-046-8007
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 123-027-5 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.441 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.290 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.441 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.290 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q
SUBSTITUTES & CROSS-REFERENCES 2
AS568-027ZZR765CL2GR40Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
D952 ITEM 77Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 123-027-5?
123-027-5 is a COUPLING,TUBE.
What parts can replace 123-027-5?
There are 2 known substitutes for 123-027-5: AS568-027ZZR765CL2GR40, D952 ITEM 77. Substitute compatibility should be verified for your specific system.
What is the NSN for 123-027-5?
123-027-5 is cataloged in the U.S. Government catalog under NSN 5331-01-046-8007. 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.