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3664539 — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3664539: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include height: 0.766 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.281 INCHES NOMINAL IN, special_features: ASSEMBLY CLEARANCE RADIUS 0.281 IN. NOM IN, style_designator: STRAIGHT, W/CAP, width_across_flats: 0.438 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-00-591-3405, 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
3664539
NSN: 4730-00-591-3405
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11862 — GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT (USA)
SPECIFICATIONS
height0.766 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.281 INCHES NOMINAL IN
special_featuresASSEMBLY CLEARANCE RADIUS 0.281 IN. NOM IN
style_designatorSTRAIGHT, W/CAP
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
thread_quantity_per_inch27
screw_thread_series_designatorPTF-SPL SHORT
NSN4730-00-591-3405
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3664539 · 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
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
SHANK LENGTH: 0.281 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT, W/CAP
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
HEIGHT: 0.766 INCHES NOMINAL IN
•
SCREW THREAD SERIES DESIGNATOR: PTF-SPL SHORT
•
THREAD QUANTITY PER INCH: 27
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
SHANK LENGTH0.281 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT, W/CAP
NOMINAL THREAD SIZE0.125 INCHES IN
HEIGHT0.766 INCHES NOMINAL IN
SPECIAL FEATURESASSEMBLY CLEARANCE RADIUS 0.281 IN. NOM IN
SCREW THREAD SERIES DESIGNATORPTF-SPL SHORT
THREAD QUANTITY PER INCH27
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
10109153Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
301370Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
537K43Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4740Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
144722Reference document
Same NSN cross-reference
Reference document — Secondary reference
271520Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3664539?
3664539 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 3664539?
There are 9 known substitutes for 3664539: 10109153, 301370, 537K43 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3664539?
3664539 is cataloged in the U.S. Government catalog under NSN 4730-00-591-3405. 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.