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Technical Data Sheet
PartsTable / COMPONENT / 99121610
99121610 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.187 INCHES NOMINAL IN, diameter: 0.687 INCHES NOMINAL IN, material: STEEL OVERALL, head_style: FLAT, style_designator: STRAIGHT, pin_head_diameter: 0.937 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-149-2516, 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
99121610
NSN: 5315-00-149-2516
FSC: 5315
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
height0.187 INCHES NOMINAL IN
diameter0.687 INCHES NOMINAL IN
materialSTEEL OVERALL
head_styleFLAT
style_designatorSTRAIGHT
pin_head_diameter0.937 INCHES NOMINAL IN
under_head_length5.313 INCHES NOMINAL IN
first_hole_diameter0.187 INCHES NOMINAL IN
hole_arrangement_styleDRILLED THRU CENTER
NSN5315-00-149-2516
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 99121610 · 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
•
FIRST HOLE DIAMETER: 0.187 INCHES NOMINAL IN
•
HEAD STYLE: FLAT
•
DIAMETER: 0.687 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 5.313 INCHES NOMINAL IN
•
HEIGHT: 0.187 INCHES NOMINAL IN
•
PIN HEAD DIAMETER: 0.937 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: DRILLED THRU CENTER
•
STYLE DESIGNATOR: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
FIRST HOLE DIAMETER0.187 INCHES NOMINAL IN
HEAD STYLEFLAT
DIAMETER0.687 INCHES NOMINAL IN
UNDER HEAD LENGTH5.313 INCHES NOMINAL IN
HEIGHT0.187 INCHES NOMINAL IN
PIN HEAD DIAMETER0.937 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEDRILLED THRU CENTER
STYLE DESIGNATORSTRAIGHT
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
XC110Interchangeable
interchangeable cross-reference
interchangeable
845936-02Interchangeable
interchangeable cross-reference
interchangeable
963410-1Interchangeable
interchangeable cross-reference
interchangeable
216-10Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-16208 TY1Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-16208Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 99121610?
99121610 is a PIN,STRAIGHT,HEADED.
What parts can replace 99121610?
There are 21 known substitutes for 99121610: XC110, 845936-02, 963410-1 and 18 more. Substitute compatibility should be verified for your specific system.
Is 99121610 still available?
99121610 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026