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S8112-31 — PIN,GROOVED,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S8112-31: PIN,GROOVED,HEADED.

The PIN,GROOVED,HEADED is a the manufacturer industrial component. Key specifications include height: 0.042 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN, diameter: 0.406 INCHES NOMINAL IN, material: STEEL COMP 8740 OVERALL, head_style: FLAT, undercut_width: 0.062 INCHES NOMINAL IN, style_designator: GROOVE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-033-4603, 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
S8112-31
NSN: 5315-00-033-4603
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
height0.042 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
diameter0.406 INCHES NOMINAL IN
materialSTEEL COMP 8740 OVERALL
head_styleFLAT
undercut_width0.062 INCHES NOMINAL IN
style_designatorGROOVE
pin_head_diameter0.469 INCHES NOMINAL IN
under_head_length0.641 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN
undercut_diameter0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
material_document_and_classificationAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-033-4603
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S8112-31 · 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
•
UNDERCUT WIDTH: 0.062 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 0.641 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: GROOVE
•
PIN HEAD DIAMETER: 0.469 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.406 INCHES NOMINAL IN
•
HEAD STYLE: FLAT
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.062 INCHES NOMINAL IN
UNDERCUT DIAMETER0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
UNDER HEAD LENGTH0.641 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.406 INCHES NOMINAL IN
HEAD STYLEFLAT
HEIGHT0.042 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
MATERIALSTEEL COMP 8740 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S8112-31?
S8112-31 is a PIN,GROOVED,HEADED.
What is the NSN for S8112-31?
S8112-31 is cataloged in the U.S. Government catalog under NSN 5315-00-033-4603. 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.