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6406-031 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6406-031: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include scale_range: +0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-921-0926, 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
6406-031
NSN: 5305-00-921-0926
NIINs: 009210926, 014522080
FSC: 5305 — Screws
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
scale_range+0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS
NSN5305-00-921-0926
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6406-031 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENER LENGTH: 3.340 INCHES NOMINAL IN
•
SHOULDER LENGTH: 2.615 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.685 INCHES MINIMUM AND 0.686 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.520 INCHES MINIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
FASTENER LENGTH3.340 INCHES NOMINAL IN
SHOULDER LENGTH2.615 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.685 INCHES MINIMUM AND 0.686 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.520 INCHES MINIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTANODIZE OVERALL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 6406-031?
6406-031 is a SCREW,SHOULDER.
What is the NSN for 6406-031?
6406-031 is cataloged in the U.S. Government catalog under NSN 5305-00-921-0926. 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.