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541031 — 541031

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

541031: 541031.

The 541031 is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347, flange_width: 0.210 INCHES NOMINAL IN, overall_length: 0.372 INCHES NOMINAL IN, style_designator: SLEEVE, seat_angle_in_deg: 45.0, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-908-0522, 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→ 541031
NSN: 4730-00-908-0522
NIINs: 009080522, 011636435
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 347
flange_width0.210 INCHES NOMINAL IN
overall_length0.372 INCHES NOMINAL IN
style_designatorSLEEVE
seat_angle_in_deg45.0
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter1.915 INCHES MINIMUM AND 1.925 INCHES MAXIMUM IN
sleeve_outside_diameter1.586 INCHES NOMINAL IN
hose/tube_outside_diameter_for_which_designed1.500 INCHES NOMINAL IN
NSN4730-00-908-0522
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 541031 · 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: 45.0
•
STYLE DESIGNATOR: SLEEVE
•
SLEEVE OUTSIDE DIAMETER: 1.586 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
FLANGE WIDTH: 0.210 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 347
•
FLANGE OUTSIDE DIAMETER: 1.915 INCHES MINIMUM AND 1.925 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG45.0
STYLE DESIGNATORSLEEVE
OVERALL LENGTH0.372 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER1.586 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
FLANGE WIDTH0.210 INCHES NOMINAL IN
MATERIALSTEEL COMP 347
FLANGE OUTSIDE DIAMETER1.915 INCHES MINIMUM AND 1.925 INCHES MAXIMUM IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 541031?
541031 is a 541031. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 541031?
541031 is cataloged in the U.S. Government catalog under NSN 4730-00-908-0522. 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.