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304912 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

304912: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1112 OR STEEL COMP 1113 OVERALL, overall_length: 0.750 INCHES NOMINAL IN, hardness_rating: 100.0 ROCKWELL B NOMINAL OVERALL, style_designator: CENTER GROOVE, features_provided: CASEHARDENED, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-274-4407, 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
304912
NSN: 5315-00-274-4407
NIINs: 002744407, 015349008
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 70143 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1112 OR STEEL COMP 1113 OVERALL
overall_length0.750 INCHES NOMINAL IN
hardness_rating100.0 ROCKWELL B NOMINAL OVERALL
style_designatorCENTER GROOVE
features_providedCASEHARDENED
surface_treatmentZINC OVERALL
intermediate_diameter0.100 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
pin_small_end_diameter0.09275 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN
material_document_and_classificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5315-00-274-4407
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 304912 · 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
•
INTERMEDIATE DIAMETER: 0.100 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
•
HARDNESS RATING: 100.0 ROCKWELL B NOMINAL OVERALL
•
STYLE DESIGNATOR: CENTER GROOVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
PIN SMALL END DIAMETER: 0.09275 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
INTERMEDIATE DIAMETER0.100 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
HARDNESS RATING100.0 ROCKWELL B NOMINAL OVERALL
STYLE DESIGNATORCENTER GROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH0.750 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
PIN SMALL END DIAMETER0.09275 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL COMP 1112 OR STEEL COMP 1113 OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 304912?
304912 is a PIN,GROOVED,HEADLESS.
What is the NSN for 304912?
304912 is cataloged in the U.S. Government catalog under NSN 5315-00-274-4407. 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.