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12399 — TRANSFORMER,POWER AUTOTRANSFORME

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

12399: TRANSFORMER,POWER AUTOTRANSFORME.

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include general_characteristics_item_description: NO TECH REVIEW OR CHARACTERISTICS DATA. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-001-8165, 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→ 12399
NSN: 5310-00-001-8165
NIINs: 000018165, 000689997, 002281413, 002804500, 008348924, 009087290, 009498106, 014166059
FSC: 5310 — Nuts and Washers
CAGE: 85013 — LAGUNA PUEBLO OF DBA LAGUNA TRIBAL COURTS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionNO TECH REVIEW OR CHARACTERISTICS DATA
NSN5310-00-001-8165
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12399 · 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
•
STYLE DESIGNATOR: SPRING TENSION
•
OUTSIDE DIAMETER: 1.555 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.014 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1075 OVERALL
•
HOLE DIAMETER: 0.971 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.125 INCHES NOMINAL IN
STYLE DESIGNATORSPRING TENSION
OUTSIDE DIAMETER1.555 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN
MATERIAL THICKNESS0.014 INCHES NOMINAL IN
MATERIALSTEEL COMP 1075 OVERALL
HOLE DIAMETER0.971 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12399?
12399 is a TRANSFORMER,POWER AUTOTRANSFORME. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 12399?
12399 is cataloged in the U.S. Government catalog under NSN 5310-00-001-8165. 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.