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9991-8H44 — PIN,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

9991-8H44: PIN,LOCK.

The PIN,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1065 OVERALL, prong_length: 2.000 INCHES NOMINAL IN, opening_width: 0.221 INCHES NOMINAL IN, style_designator: LOCK, surface_treatment: CADMIUM OVERALL, wire_stock_diameter: 0.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-965-1774, 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
9991-8H44
NSN: 5315-00-965-1774
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 07188 — UNION CARBIDE CORP LINDE DIV
SPECIFICATIONS
materialSTEEL COMP 1065 OVERALL
prong_length2.000 INCHES NOMINAL IN
opening_width0.221 INCHES NOMINAL IN
style_designatorLOCK
surface_treatmentCADMIUM OVERALL
wire_stock_diameter0.120 INCHES NOMINAL IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-965-1774
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9991-8H44 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIRE STOCK DIAMETER: 0.120 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LOCK
•
OPENING WIDTH: 0.221 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PRONG LENGTH: 2.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1065 OVERALL
TECHNICAL CHARACTERISTICS
WIRE STOCK DIAMETER0.120 INCHES NOMINAL IN
STYLE DESIGNATORLOCK
OPENING WIDTH0.221 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PRONG LENGTH2.000 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1065 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
1HP-143Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9991-8H44?
9991-8H44 is a PIN,LOCK.
What parts can replace 9991-8H44?
There is 1 known substitute for 9991-8H44: 1HP-143. Substitute compatibility should be verified for your specific system.
What is the NSN for 9991-8H44?
9991-8H44 is cataloged in the U.S. Government catalog under NSN 5315-00-965-1774. 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.