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3Q868B — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3Q868B: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.9970 INCHES MINIMUM AND 0.9975 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 2.656 INCHES MINIMUM AND 2.719 INCHES MAXIMUM IN, undercut_width: 0.046 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN, first_end_style: CHAMFERED, effective_length: 2.344 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-903-7579, 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
3Q868B
NSN: 5315-00-903-7579
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.9970 INCHES MINIMUM AND 0.9975 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length2.656 INCHES MINIMUM AND 2.719 INCHES MAXIMUM IN
undercut_width0.046 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
first_end_styleCHAMFERED
effective_length2.344 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
special_featuresONE HOLE CENTER LONGITUDINAL 0.187 IN. DIA BY 1.500 IN. DEEP 1/8-27 NPT IN
style_designatorGROOVE
surface_treatmentCADMIUM OVERALL
undercut_diameter0.937 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
first_hole_diameter0.187 INCHES NOMINAL IN
NSN5315-00-903-7579
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3Q868B · 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: 0.046 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.031 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.937 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.046 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.031 INCHES NOMINAL IN
UNDERCUT DIAMETER0.937 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE ARRANGEMENT STYLEONE END DRILLED
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.187 INCHES NOMINAL IN
STYLE DESIGNATORGROOVE
DIAMETER0.9970 INCHES MINIMUM AND 0.9975 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3Q868B?
3Q868B is a PIN,GROOVED,HEADLESS.
What is the NSN for 3Q868B?
3Q868B is cataloged in the U.S. Government catalog under NSN 5315-00-903-7579. 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.