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1C5278-5P8 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1C5278-5P8: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN, diameter: 0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, material: STEEL COMP 1117 OR STEEL COMP 1020 OVERALL, head_style: FLAT FILLISTER, chamfer_length: 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, special_features: BOTH ENDS OF HOLE IN HEAD COUNTERSINK 80 DEGREE MIN 82 DEGREE MAX 0.320 IN. MIN 0.380 IN.

MAX DIA IN. This part is cataloged in the U.S. Government catalog under NSN 5315-00-435-0179, 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
1C5278-5P8
NSN: 5315-00-435-0179
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
height0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
diameter0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
materialSTEEL COMP 1117 OR STEEL COMP 1020 OVERALL
head_styleFLAT FILLISTER
chamfer_length0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
special_featuresBOTH ENDS OF HOLE IN HEAD COUNTERSINK 80 DEGREE MIN 82 DEGREE MAX 0.320 IN. MIN 0.380 IN. MAX DIA IN
style_designatorSTRAIGHT
pin_chamfer_angle14.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
pin_head_diameter0.700 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
under_head_length6.380 INCHES MINIMUM AND 6.420 INCHES MAXIMUM IN
first_hole_diameter0.187 INCHES NOMINAL IN
NSN5315-00-435-0179
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1C5278-5P8 · 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: 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HOLE ARRANGEMENT STYLE: DRILLED THRU HEAD
•
UNDER HEAD LENGTH: 6.380 INCHES MINIMUM AND 6.420 INCHES MAXIMUM IN
•
PIN CHAMFER ANGLE: 14.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
•
FIRST HOLE DIAMETER: 0.187 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.700 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE ARRANGEMENT STYLEDRILLED THRU HEAD
UNDER HEAD LENGTH6.380 INCHES MINIMUM AND 6.420 INCHES MAXIMUM IN
PIN CHAMFER ANGLE14.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
FIRST HOLE DIAMETER0.187 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.700 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD ALL MATERIAL RESPONSES OVERALL
DIAMETER0.600 INCHES MINIMUM AND 0.610 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 1C5278-5P8?
1C5278-5P8 is a PIN,STRAIGHT,HEADED.
What is the NSN for 1C5278-5P8?
1C5278-5P8 is cataloged in the U.S. Government catalog under NSN 5315-00-435-0179. 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.