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2501 — RESISTOR,FIXED,WIRE WOUND

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

2501: RESISTOR,FIXED,WIRE WOUND.

The RESISTOR,FIXED,WIRE WOUND is a the manufacturer industrial component. Key specifications include overall_length: 36.0 INCHES NOMINAL IN, features_provided: REUSABLE, supplementary_features: RECOMMENDED WIRE SIZE: 0-15 FEET: 8AWG; 15-20 FEET: 8AWG; 20-25 FEET: 6AWG; 25-30 FEET: 6AWG FT, end_item_identification: BOAT,PATROL 2, output_current_rating_in_amps: 70.0 MAXIMUM, part_name_assigned_by_controlling_agency: INSTRUMENT KIT CERAMIC DENTAL. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-071-2233, 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→ 2501
NSN: 5305-00-071-2233
NIINs: 000712233, 001354435, 001558649, 001569870, 001948852, 002284441, 002485539, 002523697, 002597854, 002766681, 002822501, 002872640, 002930626, 002965585, 004070833, 004765867, 007196095, 007410794, 007672069, 008285810, 008647637, 008836518, 009629674, 009754609, 010891940, 011227310, 012264393, 013196093, 013919039, 013968261, 013987951, 014310707, 015078240, 015288005, 015473062, 015480149, 015736085, 016340179, 016442880, 016685981
FSC: 5305 — Screws
CAGE: 7HEQ0 — BOLT DEPOT, INC. (USA)
SPECIFICATIONS
overall_length36.0 INCHES NOMINAL IN
features_providedREUSABLE
terminal_quantity2
special_test_featuresWARNING: RISK OF EXPLOSIVE GASES; THE GUEST BATTERY ISOLATORS ARE SPECIFICALLY DESIGNED TO EFFICIENTLY UTILIZE THE ENERGY PRODUCED BY THE ALTERNATOR AND DISTRIBUTE THE POWER EVENLY TO EACH BATTERY
supplementary_featuresRECOMMENDED WIRE SIZE: 0-15 FEET: 8AWG; 15-20 FEET: 8AWG; 20-25 FEET: 6AWG; 25-30 FEET: 6AWG FT
end_item_identificationBOAT,PATROL 2
output_current_rating_in_amps70.0 MAXIMUM
part_name_assigned_by_controlling_agencyINSTRUMENT KIT CERAMIC DENTAL
NSN5305-00-071-2233
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2501 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.906 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: SAE/AMS QQ-P-416 TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
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MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
FASTENER LENGTH2.906 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSAE/AMS QQ-P-416 TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 9
81301733Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS90725-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35289-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
FF-S-85Reference document
Same NSN cross-reference
Reference document — Secondary reference
B18.2.1Reference document
Same NSN cross-reference
Reference document — Secondary reference
NASM90725-18Same 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 2501?
2501 is a RESISTOR,FIXED,WIRE WOUND. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2501?
There are 9 known substitutes for 2501: 81301733, MS90725-18, MS35289-18 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2501?
2501 is cataloged in the U.S. Government catalog under NSN 5305-00-071-2233. 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.