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5HB21 — RESISTOR,FIXED,WIRE WOUND

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5HB21: RESISTOR,FIXED,WIRE WOUND.

The RESISTOR,FIXED,WIRE WOUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, inside_diameter: 3.375 INCHES NOMINAL IN, style_designator: WIRE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW, end_item_identification: 3990-01-444-6174 BITUM DISTRIBUTOR. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-127-8822, 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
5HB21
NSN: 4730-00-127-8822
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
inside_diameter3.375 INCHES NOMINAL IN
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
end_item_identification3990-01-444-6174 BITUM DISTRIBUTOR
NSN4730-00-127-8822
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5HB21 · 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
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
STYLE DESIGNATOR: WIRE
•
INSIDE DIAMETER: 3.375 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
STYLE DESIGNATORWIRE
INSIDE DIAMETER3.375 INCHES NOMINAL IN
END ITEM IDENTIFICATION3990-01-444-6174 BITUM DISTRIBUTOR
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
B48AN800Reference document
Same NSN cross-reference
Reference document — Secondary reference
RM64Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
K-5138336Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5188036Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5173695Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6448Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5HB21?
5HB21 is a RESISTOR,FIXED,WIRE WOUND.
What parts can replace 5HB21?
There are 7 known substitutes for 5HB21: B48AN800, RM64, K-5138336 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5HB21?
5HB21 is cataloged in the U.S. Government catalog under NSN 4730-00-127-8822. 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.