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2170584 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2170584: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OVERALL, head_style: FLAT CHAMFER, head_height: 0.500 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.739 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, thread_length: 0.615 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-031-8302, 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
2170584
NSN: 5305-01-031-8302
FSC: 5305 — Screws
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OVERALL
head_styleFLAT CHAMFER
head_height0.500 INCHES NOMINAL IN
thread_class2A A
head_diameter0.739 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
thread_length0.615 INCHES NOMINAL IN
fastener_length0.855 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.312 INCHES IN
NSN5305-01-031-8302
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2170584 · 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
•
WIDTH ACROSS FLATS: 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.500 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.855 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.615 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.094 INCHES NOMINAL AND 0.099 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
HEAD HEIGHT0.500 INCHES NOMINAL IN
FASTENER LENGTH0.855 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.615 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.094 INCHES NOMINAL AND 0.099 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2170584?
2170584 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 2170584?
2170584 is cataloged in the U.S. Government catalog under NSN 5305-01-031-8302. 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.