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2122700-146 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2122700-146: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.5001 INCHES MINIMUM AND 0.5003 INCHES MAXIMUM IN, material: STEEL COMP 4140 OVERALL, overall_length: 1.625 INCHES NOMINAL IN, surface_finish: 32.0 MICROINCHES OUTSIDE DIAMETER, undercut_width: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN, first_end_style: SQUARE W/THRU HOLE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-923-5444, 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
2122700-146
NSN: 5315-00-923-5444
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 44114 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
diameter0.5001 INCHES MINIMUM AND 0.5003 INCHES MAXIMUM IN
materialSTEEL COMP 4140 OVERALL
overall_length1.625 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES OUTSIDE DIAMETER
undercut_width0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
first_end_styleSQUARE W/THRU HOLE
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
effective_length1.375 INCHES NOMINAL IN
second_end_styleSQUARE INTERNALLY THREADED
special_features0.259 IN. MIN. 0.269 IN. MAX. DIAMETER LONGITUDINAL HOLE; GROOVE END 0.250 IN. 20UNC-2B,0.532 IN. MIN. 0.592 IN. MAX. LENGTH IN
style_designatorGROOVE
surface_treatmentPHOSPHATE MANGANESE OVERALL
NSN5315-00-923-5444
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2122700-146 · 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
•
SURFACE FINISH: 32.0 MICROINCHES OUTSIDE DIAMETER
•
UNDERCUT WIDTH: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.395 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
•
FIRST END LOCATION: OPPOSITE GROOVED END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-15232 TY M,CLASS 1 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: SQUARE W/THRU HOLE
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER
UNDERCUT WIDTH0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.395 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
FIRST END LOCATIONOPPOSITE GROOVED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-15232 TY M,CLASS 1 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLESQUARE W/THRU HOLE
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.5001 INCHES MINIMUM AND 0.5003 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
2122702-146Reference document
Same NSN cross-reference
Reference document — Secondary reference
5315PL0915877Reference document
Same NSN cross-reference
Reference document — Informative reference only
2122704-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
2122700PC-146Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
PL2122700-146Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2122700-146?
2122700-146 is a PIN,GROOVED,HEADLESS.
What parts can replace 2122700-146?
There are 5 known substitutes for 2122700-146: 2122702-146, 5315PL0915877, 2122704-6 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2122700-146?
2122700-146 is cataloged in the U.S. Government catalog under NSN 5315-00-923-5444. 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.