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Technical Data Sheet
PartsTable / MRO / 12276-1
12276-1 ✓ Verified by PartsTable
Hama · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include width: 2.375 INCHES NOMINAL IN, material: STEEL OVERALL, nut_style: SLOTTED, HEXAGON, thickness: 0.125 INCHES NOMINAL IN, body_style: RECTANGULAR W/MOUNTING HOLES/SLOTS, body_width: 0.190 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-2761, 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→ 12276-1
NSN: 5310-00-012-2761
FSC: 5310
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
width2.375 INCHES NOMINAL IN
materialSTEEL OVERALL
nut_styleSLOTTED, HEXAGON
thickness0.125 INCHES NOMINAL IN
body_styleRECTANGULAR W/MOUNTING HOLES/SLOTS
body_width0.190 INCHES NOMINAL IN
nut_height0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
body_height0.315 INCHES NOMINAL IN
body_length1.250 INCHES NOMINAL IN
shaft_styleROUND, SLOTTED
shaft_length0.058 INCHES NOMINAL IN
thread_class2B
NSN5310-00-012-2761
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12276-1 · Hama ⚠ 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
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 0.750 INCHES NOMINAL IN
•
NUT HEIGHT: 0.438 INCHES NOMINAL IN
•
NUT STYLE: SLOTTED, HEXAGON
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
NUT HEIGHT0.438 INCHES NOMINAL IN
NUT STYLESLOTTED, HEXAGON
THREAD SERIESUNF
THREAD QUANTITY PER INCH20
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
11445AInterchangeable
interchangeable cross-reference
interchangeable
12276-1Interchangeable
interchangeable cross-reference
interchangeable
B122761Interchangeable
interchangeable cross-reference
interchangeable
430P682040Interchangeable
interchangeable cross-reference
interchangeable
430P508Interchangeable
interchangeable cross-reference
interchangeable
SEC3159-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12276-1?
12276-1 is a RESISTOR,VARIABLE,WIRE WOUND,NON manufactured by Hama. It is classified as a MRO (MRO_GENERAL).
What parts can replace 12276-1?
There are 15 known substitutes for 12276-1: 11445A, 12276-1, B122761 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12276-1?
12276-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-2761. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026