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1031-548 ✓ Verified by PartsTable
3M · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The SLEEVE,CLINCH,TUBE FITTING is a 3M industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEADLESS (SETSCREW), point_style: BALL, point_length: 0.310 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.810 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-9415, 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
1031-548
NSN: 4730-00-202-9415
FSC: 4730
CAGE: 0PYA5 — CONTINENTAL AEROSPACE TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleHEADLESS (SETSCREW)
point_styleBALL
point_length0.310 INCHES NOMINAL IN
thread_class2A A
thread_length0.810 INCHES MAXIMUM IN
point_diameter0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
fastener_length1.120 INCHES NOMINAL IN
special_featuresDRILLED HOLE,0.045 IN. DIA,0.060 IN. FROM DRIVE END IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.093 INCHES NOMINAL IN
NSN4730-00-202-9415
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1031-548 · 3M ⚠ 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
•
SLEEVE OUTSIDE DIAMETER: 0.594 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.125 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.375 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
SLEEVE OUTSIDE DIAMETER0.594 INCHES NOMINAL IN
FLANGE WIDTH0.125 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.500 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC
MATERIALSTEEL
STYLE DESIGNATORFLARELESS
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
1031-548Interchangeable
interchangeable cross-reference
interchangeable
43677Interchangeable
interchangeable cross-reference
interchangeable
4162Interchangeable
interchangeable cross-reference
interchangeable
SG-32YInterchangeable
interchangeable cross-reference
interchangeable
E32-5Interchangeable
Same NIIN cross-reference
interchangeable
D7068PC11/D-9082-2 NO.5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1031-548?
1031-548 is a SLEEVE,CLINCH,TUBE FITTING manufactured by 3M.
What parts can replace 1031-548?
There are 7 known substitutes for 1031-548: 1031-548, 43677, 4162 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1031-548?
1031-548 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-9415. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026