PartsTable
Technical Data Sheet
Download PDF

74A410578-2003 — PIN,GROOVED,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

74A410578-2003: PIN,GROOVED,HEADED.

The PIN,GROOVED,HEADED is a the manufacturer industrial component. Key specifications include height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, diameter: 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN, material: STEEL COMP 300M OVERALL, head_style: DEE CHAMFER, surface_finish: 32.0 MICROINCHES UNDERCUT, first_end_style: COUNTERSUNK. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-563-1399, 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
74A410578-2003
NSN: 5315-01-563-1399
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
height0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
diameter0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN
materialSTEEL COMP 300M OVERALL
head_styleDEE CHAMFER
surface_finish32.0 MICROINCHES UNDERCUT
first_end_styleCOUNTERSUNK
undercut_radius0.050 INCHES NOMINAL IN
special_featuresSEE DRAWING FOR OTHER DETAILS
style_designatorGROOVE
pin_head_diameter1.125 INCHES NOMINAL IN
under_head_length1.067 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
undercut_diameter0.720 INCHES NOMINAL IN
NSN5315-01-563-1399
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74A410578-2003 · 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: 16.0 MICROINCHES OUTSIDE DIAMETER
•
UNDERCUT DIAMETER: 0.720 INCHES NOMINAL IN
•
FIRST END COUNTERSINK DIAMETER: 0.375 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.485 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 1.067 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
•
FIRST END STYLE: COUNTERSUNK
•
STYLE DESIGNATOR: GROOVE
TECHNICAL CHARACTERISTICS
SURFACE FINISH16.0 MICROINCHES OUTSIDE DIAMETER
SURFACE FINISH32.0 MICROINCHES UNDERCUT
UNDERCUT DIAMETER0.720 INCHES NOMINAL IN
FIRST END COUNTERSINK DIAMETER0.375 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.485 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
UNDER HEAD LENGTH1.067 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
FIRST END STYLECOUNTERSUNK
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER1.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-8844,CL 3,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE 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: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 74A410578-2003?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 74A410578-2003?
74A410578-2003 is a PIN,GROOVED,HEADED.
What is the NSN for 74A410578-2003?
74A410578-2003 is cataloged in the U.S. Government catalog under NSN 5315-01-563-1399. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 74A410578-2003

✓ 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.