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2904 — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

2904: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include maximum_overall_width: 2.570 INCHES IN, current_rating_in_amps: 2.0, maximum_overall_length: 4.750 INCHES IN, maximum_voltage_rating_in_volts: 5.0 DC. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-021-8570, 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
MRO→ MRO_GENERAL→ 2904
NSN: 5310-00-021-8570
NIINs: 000218570, 000498030, 001008730, 001087465, 001561857, 005572688, 005784518, 006436382, 006770833, 007840330, 010523465, 011444899, 013563957, 014523453, 015214428
FSC: 5310 — Nuts and Washers
CAGE: 76933 — GATE CITY STEEL CORP (USA)
SPECIFICATIONS
maximum_overall_width2.570 INCHES IN
current_rating_in_amps2.0
maximum_overall_length4.750 INCHES IN
maximum_voltage_rating_in_volts5.0 DC
NSN5310-00-021-8570
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2904 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.750 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.437 INCHES IN
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY HGT
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
•
NUT HEIGHT: 0.359 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.437 INCHES IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY HGT
NONDEFINITIVE SPEC/STD DATAA TYPE
NUT HEIGHT0.359 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 7
N12311JReference document
Same NSN cross-reference
Reference document — Secondary reference
101048HReference document
Same NSN cross-reference
Reference document — Secondary reference
FFB571TYPEAReference document
Same NSN cross-reference
Reference document — Identification reference
DX599CReference document
Same NSN cross-reference
Reference document — Secondary reference
218570Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
NU135Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2904?
2904 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2904?
There are 7 known substitutes for 2904: N12311J, 101048H, FFB571TYPEA and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2904?
2904 is cataloged in the U.S. Government catalog under NSN 5310-00-021-8570. 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.