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731570PC2 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

731570PC2: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 0.761 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES SHANK END, undercut_width: 0.073 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN, first_end_style: CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-274-4897, 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
731570PC2
NSN: 5315-00-274-4897
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length0.761 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES SHANK END
undercut_width0.073 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
first_end_styleCHAMFERED
hardness_rating45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
undercut_radius0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
effective_length0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
style_designatorGROOVE
surface_treatmentPHOSPHATE OVERALL
undercut_diameter0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
NSN5315-00-274-4897
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 731570PC2 · 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 SHANK END
•
UNDERCUT WIDTH: 0.073 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.005 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: CHAMFERED
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES SHANK END
UNDERCUT WIDTH0.073 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.005 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLECHAMFERED
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
DIAMETER0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 731570PC2?
731570PC2 is a PIN,GROOVED,HEADLESS.
What is the NSN for 731570PC2?
731570PC2 is cataloged in the U.S. Government catalog under NSN 5315-00-274-4897. 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.