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1851093PC1 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1851093PC1: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 310 OR STEEL COMP 316 OVERALL, head_style: KNURLED NO. 1, head_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.875 INCHES NOMINAL IN, thread_length: 0.375 INCHES MINIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-730-4804, 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
1851093PC1
NSN: 5305-00-730-4804
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 OR STEEL COMP 305 OR STEEL COMP 310 OR STEEL COMP 316 OVERALL
head_styleKNURLED NO. 1
head_height0.312 INCHES NOMINAL IN
thread_class2A A
head_diameter0.875 INCHES NOMINAL IN
thread_length0.375 INCHES MINIMUM IN
fastener_length2.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.312 INCHES IN
first_diameter_from_head0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
NSN5305-00-730-4804
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1851093PC1 · 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: 0.312 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.500 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.375 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OR QQ-W-423 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
FIRST DIAMETER FROM HEAD: 0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.312 INCHES NOMINAL IN
FASTENER LENGTH2.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.375 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC ALL MATERIAL RESPONSES OR QQ-W-423 FED SPEC ALL MATERIAL RESPONSES OVERALL
FIRST DIAMETER FROM HEAD0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
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 2
3111-1035P1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1851093PC1REVAReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1851093PC1?
1851093PC1 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 1851093PC1?
There are 2 known substitutes for 1851093PC1: 3111-1035P1, 1851093PC1REVA. Substitute compatibility should be verified for your specific system.
What is the NSN for 1851093PC1?
1851093PC1 is cataloged in the U.S. Government catalog under NSN 5305-00-730-4804. 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.