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34028 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

34028: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include fsc_application_data: TELETYPE AND FACSIMILE EQUIPMENT, end_item_identification: AN-UGC-121 M37-680-2. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-118-7710, 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
MRO→ MRO_GENERAL→ 34028
NSN: 5330-00-118-7710
NIINs: 001187710, 003316091, 007295571, 010076715, 010447797, 012975059, 014438533, 015317663, 016607137
FSC: 5330 — Packing and Gasket Materials
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
fsc_application_dataTELETYPE AND FACSIMILE EQUIPMENT
end_item_identificationAN-UGC-121 M37-680-2
NSN5330-00-118-7710
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 34028 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 THICKNESS: 0.015 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: RUBBER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.015 INCHES NOMINAL IN
OVERALL LENGTH6.406 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH6.281 INCHES NOMINAL IN
SPECIAL FEATURESMULTIPLE HOLES,1 AT 3.578 IN. DIA,2 AT 0.3125 IN. DIA,1 AT 1.25 IN. DIA,1 AT 0.281 IN. DIA AND 10 AT 0.34375 IN. DIA IN
MATERIALRUBBER OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
2810H37-004Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAC255Reference 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 34028?
34028 is a COUPLING HALF,QUICK DISCONNECT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 34028?
There are 2 known substitutes for 34028: 2810H37-004, SAC255. Substitute compatibility should be verified for your specific system.
What is the NSN for 34028?
34028 is cataloged in the U.S. Government catalog under NSN 5330-00-118-7710. 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.