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4TU-M — SLEEVE,CLINCH,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4TU-M: SLEEVE,CLINCH,TUBE FITTING.

The SLEEVE,CLINCH,TUBE FITTING is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-131-4954, 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
4TU-M
NSN: 4730-01-131-4954
NIINs: 011314954, 014820396
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN4730-01-131-4954
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4TU-M · 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
•
SEAT ANGLE IN DEG: 40.0
•
STYLE DESIGNATOR: FLARELESS
•
SLEEVE OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: NICKEL ALLOY
•
FLANGE OUTSIDE DIAMETER: 0.367 INCHES NOMINAL IN
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG40.0
STYLE DESIGNATORFLARELESS
OVERALL LENGTH0.363 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALNICKEL ALLOY
FLANGE OUTSIDE DIAMETER0.367 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
10207-1 ITEM 11Reference document
Same NSN cross-reference
Reference document — Secondary reference
M3170-2109 PC NO. 16Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
81-004-03Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4TU-M?
4TU-M is a SLEEVE,CLINCH,TUBE FITTING.
What parts can replace 4TU-M?
There are 3 known substitutes for 4TU-M: 10207-1 ITEM 11, M3170-2109 PC NO. 16, 81-004-03. Substitute compatibility should be verified for your specific system.
What is the NSN for 4TU-M?
4TU-M is cataloged in the U.S. Government catalog under NSN 4730-01-131-4954. 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.