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685038-1 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

685038-1: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 OVERALL, hole_type: DRILLED, head_style: FLAT CHAMFER, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-239-8580, 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
685038-1
NSN: 5305-00-239-8580
FSC: 5305 — Screws
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL COMP 4340 OVERALL
hole_typeDRILLED
head_styleFLAT CHAMFER
head_height0.250 INCHES NOMINAL IN
thread_class2A A
head_diameter0.875 INCHES NOMINAL IN
hole_diameter0.090 INCHES NOMINAL IN
thread_length0.375 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length2.270 INCHES NOMINAL IN
shoulder_length1.895 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
NSN5305-00-239-8580
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 685038-1 · 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
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.270 INCHES NOMINAL IN
•
SHOULDER LENGTH: 1.895 INCHES NOMINAL FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: CV-2.2,FSCM 49956 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.562 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HOLE CONFIGURATION STYLE: ROUND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH2.270 INCHES NOMINAL IN
SHOULDER LENGTH1.895 INCHES NOMINAL FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONCV-2.2,FSCM 49956 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.562 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.375 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
HOLE CONFIGURATION STYLEROUND
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT CHAMFER
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 685038-1?
685038-1 is a SCREW,SHOULDER.
What is the NSN for 685038-1?
685038-1 is cataloged in the U.S. Government catalog under NSN 5305-00-239-8580. 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.