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PartsTable / COMPONENT / 40490-9 REV B ITEM 37
40490-9 REV B ITEM 37 ✓ 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 PLATE,REAR,TELETYPEWRITER 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 4730-01-725-7105, 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
40490-9 REV B ITEM 37
NSN: 4730-01-725-7105
FSC: 4730
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
Part Number40490-9 REV B ITEM 37
NSN4730-01-725-7105
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 40490-9 REV B ITEM 37 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
154101Interchangeable
interchangeable cross-reference
interchangeable
215709Interchangeable
interchangeable cross-reference
interchangeable
2J-8163Interchangeable
interchangeable cross-reference
interchangeable
SK154101Interchangeable
interchangeable cross-reference
interchangeable
72015Interchangeable
interchangeable cross-reference
interchangeable
72015 PIECE 22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40490-9 REV B ITEM 37?
40490-9 REV B ITEM 37 is a PLATE,REAR,TELETYPEWRITER.
What parts can replace 40490-9 REV B ITEM 37?
There are 6 known substitutes for 40490-9 REV B ITEM 37: 154101, 215709, 2J-8163 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40490-9 REV B ITEM 37?
40490-9 REV B ITEM 37 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-725-7105. 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