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A1665 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A1665: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include special_features: FULL COLOR, WITH YELLOW 67108, GREEN 67129 AND MINTLEAF 67186, attachment_method: HOOK FASTENER, features_provided: EMBROIDERED, design_designation: 16TH MILITARY POLICE BRIGADE, department_designation: US ARMY, procurement_group_code: 12791. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-722-3594, 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
A1665
NSN: 4730-00-722-3594
NIINs: 007223594, 011059233, 011264022, 011264023, 015288549, 016542227, 017003585
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
special_featuresFULL COLOR, WITH YELLOW 67108, GREEN 67129 AND MINTLEAF 67186
attachment_methodHOOK FASTENER
features_providedEMBROIDERED
design_designation16TH MILITARY POLICE BRIGADE
department_designationUS ARMY
procurement_group_code12791
nondefinitive_spec/std_dataI STYLE AND I TYPE AND II CLASS
NSN4730-00-722-3594
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A1665 · 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
KEY FEATURES
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.250 INCHES SECOND END IN
•
CONNECTION STYLE: SOCKET (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 2.188 INCHES IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.625 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 1.250 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED1.250 INCHES SECOND END IN
CONNECTION STYLESOCKET (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH2.188 INCHES IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.625 INCHES FIRST END IN
NOMINAL THREAD SIZE1.250 INCHES SECOND END IN
MATERIALCOPPER OVERALL
THREAD SERIES DESIGNATORNPT SECOND END
SUBSTITUTES & CROSS-REFERENCES 3
62401-29Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
604-1-1-2X1-1-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
W11801-1/2X1-1/4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A1665?
A1665 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace A1665?
There are 3 known substitutes for A1665: 62401-29, 604-1-1-2X1-1-4, W11801-1/2X1-1/4. Substitute compatibility should be verified for your specific system.
What is the NSN for A1665?
A1665 is cataloged in the U.S. Government catalog under NSN 4730-00-722-3594. This indicates validated use in U.S. government and defense supply chains.
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