PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 5100-257 PAR 3.2.3.7
5100-257 PAR 3.2.3.7 ✓ Verified by PartsTable
— · 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 5100-257 PAR 3.2.3.7 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-057-4210, 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
5100-257 PAR 3.2.3.7
NSN: 4730-01-057-4210
FSC: 4730
CAGE: 04024 — FOREST SERVICE SPECIFICATIONS PROMULGATED BY UNITED STATES FOREST SERVICE WASHINGTON DC
SPECIFICATIONS
Part Number5100-257 PAR 3.2.3.7
NSN4730-01-057-4210
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5100-257 PAR 3.2.3.7 · 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
•
MATERIAL: STEEL BODY
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL BODY
SPECIAL FEATURESTHREADED ON ONE END, 3/8 IN., 18 NPT, W/FEMALE QUICK-DISCONNECT SLIP CONNECTOR ON THE OTHER END, QUICK-DISCONNECT END SEALS FLUID IN WHEN DISCONNECTED, MATES TO NSN 4730-01-057-0136 IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
B-14NInterchangeable
interchangeable cross-reference
interchangeable
3723257Interchangeable
interchangeable cross-reference
interchangeable
NSN-5448Interchangeable
interchangeable cross-reference
interchangeable
176050Interchangeable
interchangeable cross-reference
interchangeable
101-343Interchangeable
interchangeable cross-reference
interchangeable
SP-8310Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 5100-257 PAR 3.2.3.7?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 5100-257 PAR 3.2.3.7?
5100-257 PAR 3.2.3.7 is a 5100-257 PAR 3.2.3.7.
What parts can replace 5100-257 PAR 3.2.3.7?
There are 11 known substitutes for 5100-257 PAR 3.2.3.7: B-14N, 3723257, NSN-5448 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5100-257 PAR 3.2.3.7?
5100-257 PAR 3.2.3.7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-057-4210. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 5100-257 PAR 3.2.3.7

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026