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1640880 — SLEEVE,COMPRESSION,TUBE-HOSE FIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1640880: SLEEVE,COMPRESSION,TUBE-HOSE FIT.

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: COPPER ALLOY OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.520 INCHES NOMINAL SECOND END IN, seat_angle: 20.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-113-1791, 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
1640880
NSN: 4730-01-113-1791
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flow_angle90.0 DEGREES
leg_length0.520 INCHES NOMINAL SECOND END IN
seat_angle20.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) FIRST END
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.125 INCHES SECOND END IN
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
media_for_which_designedAIR SINGLE RESPONSE
NSN4730-01-113-1791
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1640880 · 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
•
FLOW ANGLE: 90.0 DEGREES
•
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
LEG LENGTH: 0.690 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH0.690 INCHES NOMINAL FIRST END IN
LEG LENGTH0.520 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 8
SW26264Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4-2 100203BAReference document
Same NSN cross-reference
Reference document — Design control — primary reference
270NTA-4-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
13950HReference document
Same NSN cross-reference
Reference document — Secondary reference
4-470-F-04X2Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-J246Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1640880?
1640880 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 1640880?
There are 8 known substitutes for 1640880: SW26264, 4-2 100203BA, 270NTA-4-2 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1640880?
1640880 is cataloged in the U.S. Government catalog under NSN 4730-01-113-1791. This indicates validated use in U.S. government and defense supply chains.
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