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12738-1 — NUT,PLAIN,HEXAGON

✓ Government record, cited
Hypertec · NUT WASHER
PRODUCT OVERVIEW

12738-1: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a Hypertec industrial component. Key specifications include end_item_identification: STO ELEVATOR, lamp_wattage_rating_in_watts: 150.00, part_name_assigned_by_controlling_agency: 150W ELECTRONIC BALLAST W. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-821-9021, 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
12738-1
NSN: 5310-00-821-9021
NIINs: 008219021, 016238131
FSC: 5310 — Nuts and Washers
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
end_item_identificationSTO ELEVATOR
lamp_wattage_rating_in_watts150.00
part_name_assigned_by_controlling_agency150W ELECTRONIC BALLAST W
NSN5310-00-821-9021
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12738-1 · Hypertec ⚠ 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: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
•
THREAD QUANTITY PER INCH: 24
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH24
MATERIALPLASTIC OVERALL
BEARING SURFACE TYPEFLAT
SUBSTITUTES & CROSS-REFERENCES 1
542-8151-002Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 12738-1?
12738-1 is a NUT,PLAIN,HEXAGON manufactured by Hypertec.
What parts can replace 12738-1?
There is 1 known substitute for 12738-1: 542-8151-002. Substitute compatibility should be verified for your specific system.
What is the NSN for 12738-1?
12738-1 is cataloged in the U.S. Government catalog under NSN 5310-00-821-9021. 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.