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3931 ✓ Verified by PartsTable
Esselte · 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

Standard signature book for organising documents like contracts, invoices and other docuements requiring signed approval. Key specifications include material: PLASTIC POLYCARBONATE, nut_style: HEXAGON, unit_type: CROWN, body_width: 1.200 INCHES MAXIMUM IN, nut_height: 0.405 INCHES NOMINAL IN, body_height: 0.600 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-265-7018, 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
3931
NSN: 4730-00-265-7018
FSC: 4730
CAGE: 94833 — KECO INDUSTRIES, INC. (USA)
SPECIFICATIONS
materialPLASTIC POLYCARBONATE
nut_styleHEXAGON
unit_typeCROWN
body_width1.200 INCHES MAXIMUM IN
nut_height0.405 INCHES NOMINAL IN
body_height0.600 INCHES MAXIMUM IN
body_length1.700 INCHES MAXIMUM IN
design_typeWHIP SINGLE ANTENNA ELEMENT
power_rating1.000 KILOWATTS PEAK SINGLE ANTENNA ELEMENT
thread_class2B
terminal_typeFERRULE SINGLE ANTENNA ELEMENT
thread_seriesUNS
NSN4730-00-265-7018
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3931 · Esselte ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
B16-22-1963Interchangeable
interchangeable cross-reference
interchangeable
WW-T-725Interchangeable
interchangeable cross-reference
interchangeable
ANSIB16.22Interchangeable
interchangeable cross-reference
interchangeable
845-2445071Interchangeable
interchangeable cross-reference
interchangeable
MS35927-25Interchangeable
interchangeable cross-reference
interchangeable
W1092Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3931?
3931 is a Sangoma 617 DB37MALE-V.35MALE 6FT manufactured by Esselte.
What parts can replace 3931?
There are 17 known substitutes for 3931: B16-22-1963, WW-T-725, ANSIB16.22 and 14 more. Substitute compatibility should be verified for your specific system.
Is 3931 still available?
3931 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026