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4838058 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4838058: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include overall_width: 21.65 MILLIMETERS NOMINAL MM, overall_length: 203.2 MILLIMETERS NOMINAL MM, end_item_identification: 2355-01-654-5323, cross-sectional_thickness: 7.3 MILLIMETERS NOMINAL MM, part_name_assigned_by_controlling_agency: SEAL,GASKET,EVAP,HVAC. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-534-6571, 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
4838058
NSN: 5305-01-534-6571
NIINs: 015346571, 017278617
FSC: 5305 — Screws
CAGE: 38921 — ALLEN-VANGUARD CORPORATION (CAN)
SPECIFICATIONS
overall_width21.65 MILLIMETERS NOMINAL MM
overall_length203.2 MILLIMETERS NOMINAL MM
end_item_identification2355-01-654-5323
cross-sectional_thickness7.3 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencySEAL,GASKET,EVAP,HVAC
NSN5305-01-534-6571
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4838058 · 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: 0.078 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.073 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.750 INCHES NOMINAL IN
•
HARDNESS RATING: 85.0 ROCKWELL B NOMINAL OVERALL
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: PAN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.078 INCHES NOMINAL IN
HEAD HEIGHT0.073 INCHES NOMINAL IN
FASTENER LENGTH0.750 INCHES NOMINAL IN
THREAD LENGTH0.750 INCHES NOMINAL IN
HARDNESS RATING85.0 ROCKWELL B NOMINAL OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEPAN
THREAD DIRECTIONRIGHT-HAND
MINIMUM TENSILE STRENGTH85000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 1
92949A151Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 4838058?
4838058 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 4838058?
There is 1 known substitute for 4838058: 92949A151. Substitute compatibility should be verified for your specific system.
What is the NSN for 4838058?
4838058 is cataloged in the U.S. Government catalog under NSN 5305-01-534-6571. 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.