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255944P4 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

255944P4: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN, diameter: 0.353 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN, material: IRON ALLOY 660 OVERALL, head_style: FLAT, chamfer_length: 0.020 INCHES NOMINAL IN, style_designator: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-859-9507, 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
255944P4
NSN: 5315-00-859-9507
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
height0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
diameter0.353 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
materialIRON ALLOY 660 OVERALL
head_styleFLAT
chamfer_length0.020 INCHES NOMINAL IN
style_designatorSTRAIGHT
pin_chamfer_angle43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
pin_head_diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
under_head_length1.430 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN
material_document_and_classificationAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-859-9507
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 255944P4 · 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
•
CHAMFER LENGTH: 0.020 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 1.430 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN
•
PIN CHAMFER ANGLE: 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.353 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.020 INCHES NOMINAL IN
UNDER HEAD LENGTH1.430 INCHES MINIMUM AND 1.470 INCHES MAXIMUM IN
PIN CHAMFER ANGLE43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.353 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
HEAD STYLEFLAT
HEIGHT0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
MATERIALIRON ALLOY 660 OVERALL
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 255944P4?
255944P4 is a PIN,STRAIGHT,HEADED.
What is the NSN for 255944P4?
255944P4 is cataloged in the U.S. Government catalog under NSN 5315-00-859-9507. 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.