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21-0088 — SCREW,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

21-0088: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: PAN, head_height: 0.080 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.219 INCHES NOMINAL IN, thread_length: 0.380 INCHES NOMINAL IN, screw_material: STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-178-1560, 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
21-0088
NSN: 5310-01-178-1560
NIINs: 011781560, 014951847
FSC: 5310 — Nuts and Washers
CAGE: 55818 — VEGA ENTERPRISES INC (USA)
SPECIFICATIONS
head_stylePAN
head_height0.080 INCHES NOMINAL IN
thread_class2A A
head_diameter0.219 INCHES NOMINAL IN
thread_length0.380 INCHES NOMINAL IN
screw_materialSTEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU
fastener_length0.380 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.112 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5310-01-178-1560
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21-0088 · 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 21-0088?
21-0088 is a SCREW,MACHINE.
What is the NSN for 21-0088?
21-0088 is cataloged in the U.S. Government catalog under NSN 5310-01-178-1560. This indicates validated use in U.S. government and defense supply chains.
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