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GP4-1563X438-50 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

GP4-1563X438-50: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL, overall_length: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, first_end_style: OVAL, style_designator: ONE HALF GROOVE, first_end_location: BOTH ENDS, intermediate_diameter: 0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-808-9119, 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
GP4-1563X438-50
NSN: 5315-00-808-9119
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73957 — GROOV-PIN CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
overall_length0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
first_end_styleOVAL
style_designatorONE HALF GROOVE
first_end_locationBOTH ENDS
intermediate_diameter0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
first_end_outer_radius0.188 INCHES NOMINAL IN
pin_large_end_diameter0.1563 INCHES MINIMUM AND 0.1564 INCHES MAXIMUM IN
pin_small_end_diameter0.1540 INCHES MINIMUM AND 0.1563 INCHES MAXIMUM IN
material_document_and_classificationAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-808-9119
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: GP4-1563X438-50 · 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
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END STYLE: OVAL
•
INTERMEDIATE DIAMETER: 0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ONE HALF GROOVE
•
PIN LARGE END DIAMETER: 0.1563 INCHES MINIMUM AND 0.1564 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
TECHNICAL CHARACTERISTICS
FIRST END LOCATIONBOTH ENDS
FIRST END STYLEOVAL
INTERMEDIATE DIAMETER0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
STYLE DESIGNATORONE HALF GROOVE
PIN LARGE END DIAMETER0.1563 INCHES MINIMUM AND 0.1564 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN SMALL END DIAMETER0.1540 INCHES MINIMUM AND 0.1563 INCHES MAXIMUM IN
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X 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 2
324B167P009Reference document
Same NSN cross-reference
Reference document — Secondary reference
324B167P9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 GP4-1563X438-50?
GP4-1563X438-50 is a PIN,GROOVED,HEADLESS.
What parts can replace GP4-1563X438-50?
There are 2 known substitutes for GP4-1563X438-50: 324B167P009, 324B167P9. Substitute compatibility should be verified for your specific system.
What is the NSN for GP4-1563X438-50?
GP4-1563X438-50 is cataloged in the U.S. Government catalog under NSN 5315-00-808-9119. 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.