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8843546 — GEAR,HELICAL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8843546: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL, special_features: WSDC: WGN-SUBMARINE ENGINEERING AND DIESEL SYSTEMS; PART OF GEARBOX ASSY, ATHW; CAGE 03950, part_name_assigned_by_controlling_agency: PLUG, HOLLOW, HEX HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-721-1681, 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
8843546
NSN: 5305-01-721-1681
NIINs: 017211681, 017211721, 017211731, 017211914, 017213077, 017213515, 017213664, 017213730, 017214159, 017214282, 017221858, 017222427, 017222436, 017227127
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
special_featuresWSDC: WGN-SUBMARINE ENGINEERING AND DIESEL SYSTEMS; PART OF GEARBOX ASSY, ATHW; CAGE 03950
part_name_assigned_by_controlling_agencyPLUG, HOLLOW, HEX HEAD
NSN5305-01-721-1681
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8843546 · 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
SUBSTITUTES & CROSS-REFERENCES 6
8843546 PAGE 27 ITEM 28Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
R8321651-28Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LOA042367-28Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
ASTM-A574 MODReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0.312-18UNRC-3AX1.250LG STLReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
68-01-2125AWReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 8843546?
8843546 is a GEAR,HELICAL.
What parts can replace 8843546?
There are 6 known substitutes for 8843546: 8843546 PAGE 27 ITEM 28, R8321651-28, LOA042367-28 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8843546?
8843546 is cataloged in the U.S. Government catalog under NSN 5305-01-721-1681. 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.