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8004857-1 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8004857-1: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, head_style: HEXAGON, head_height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.320 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, fastener_length: 0.840 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-357-9830, 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
8004857-1
NSN: 5305-00-357-9830
FSC: 5305 — Screws
CAGE: 31550 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
head_styleHEXAGON
head_height0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_class2A A
thread_length0.320 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
fastener_length0.840 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_between_flats0.250 INCHES NOMINAL IN
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.164 INCHES IN
first_diameter_from_head0.118 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
NSN5305-00-357-9830
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8004857-1 · 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: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.840 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 0.320 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.118 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
FASTENER LENGTH0.840 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH0.320 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.118 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8004857-1?
8004857-1 is a SCREW,EXTERNALLY RELIEVED BODY.
What is the NSN for 8004857-1?
8004857-1 is cataloged in the U.S. Government catalog under NSN 5305-00-357-9830. 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.