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109B — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

109B: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: COPPER ALLOY OVERALL, body_type: CORED, head_type: SOLID, drive_end_style: RAISED SQUARE, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-011-2578, 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
109B
NSN: 4730-00-011-2578
NIINs: 000112578, 000113175, 000627221, 006988739
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 09505 — DAYCO INDUSTRIAL (CAN)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_typeCORED
head_typeSOLID
drive_end_styleRAISED SQUARE
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
operating_pressure17.8 BAR MAXIMUM
nominal_thread_size1.500 INCHES INTERNAL IN
maximum_operating_temp200.0 CELSIUS DEGC
thread_quantity_per_inch14 INTERNAL
thread_series_designatorNPT INTERNAL
nondefinitive_spec/std_data1 TYPE
NSN4730-00-011-2578
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 109B · 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
SUBSTITUTES & CROSS-REFERENCES 9
1945HX1Reference document
Same NSN cross-reference
Reference document — Secondary reference
109B1-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
A908196Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
109-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
9908-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
W65048Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 109B?
109B is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 109B?
There are 9 known substitutes for 109B: 1945HX1, 109B1-4, A908196 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 109B?
109B is cataloged in the U.S. Government catalog under NSN 4730-00-011-2578. 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.