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2122801 — PIN,GROOVED,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2122801: PIN,GROOVED,HEADED.

The PIN,GROOVED,HEADED is a the manufacturer industrial component. Key specifications include height: 0.187 INCHES NOMINAL IN, diameter: 1.244 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN, material: STEEL COMP 630 OVERALL, head_style: FLAT, surface_finish: 32.0 MICROINCHES OVERALL, undercut_width: 0.469 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-147-8785, 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
2122801
NSN: 5315-01-147-8785
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
height0.187 INCHES NOMINAL IN
diameter1.244 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
materialSTEEL COMP 630 OVERALL
head_styleFLAT
surface_finish32.0 MICROINCHES OVERALL
undercut_width0.469 INCHES NOMINAL IN
first_end_styleSQUARE
hardness_rating36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
effective_length3.063 INCHES NOMINAL IN
style_designatorGROOVE
pin_head_diameter2.125 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
NSN5315-01-147-8785
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2122801 · 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 OVERALL
•
UNDERCUT WIDTH: 0.469 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 1.147 INCHES MINIMUM AND 1.149 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 4.125 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
FIRST HOLE DIAMETER: 0.217 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES OVERALL
UNDERCUT WIDTH0.469 INCHES NOMINAL IN
UNDERCUT DIAMETER1.147 INCHES MINIMUM AND 1.149 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH4.125 INCHES NOMINAL IN
FIRST END STYLESQUARE
FIRST HOLE DIAMETER0.217 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
5315PL0888436Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 2122801?
2122801 is a PIN,GROOVED,HEADED.
What parts can replace 2122801?
There is 1 known substitute for 2122801: 5315PL0888436. Substitute compatibility should be verified for your specific system.
What is the NSN for 2122801?
2122801 is cataloged in the U.S. Government catalog under NSN 5315-01-147-8785. 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.