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2AN644 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2AN644: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM AND ALUMINUM ALLOY BODY, leg_length: 1.375 INCHES NOMINAL IN, overall_length: 2.625 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-038-2354, 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
2AN644
NSN: 4730-01-038-2354
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialALUMINUM AND ALUMINUM ALLOY BODY
leg_length1.375 INCHES NOMINAL IN
overall_length2.625 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size1.500 INCHES ALL ENDS IN
end_item_identificationHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
NSN4730-01-038-2354
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2AN644 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 4
2248610WReference document
Same NSN cross-reference
Reference document — Secondary reference
1872-45A071P5Reference document
Same NSN cross-reference
Reference document — Secondary reference
45A071-P5Reference document
Same NSN cross-reference
Reference document — Secondary reference
45A071Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2AN644?
2AN644 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 2AN644?
There are 4 known substitutes for 2AN644: 2248610W, 1872-45A071P5, 45A071-P5 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2AN644?
2AN644 is cataloged in the U.S. Government catalog under NSN 4730-01-038-2354. 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.