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900208 — SCREW,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

900208: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include special_features: 19MM CIRCUMFERENCE;FLAT TIP MM, end_item_identification: NSN 1240-01-487-0870; PERISCOPE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-086-1116, 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
900208
NSN: 5310-01-086-1116
NIINs: 010861116, 011765627, 014287626, 014877932
FSC: 5310 — Nuts and Washers
CAGE: 0DKH2 — LEE EVANS, INC. (USA)
SPECIFICATIONS
special_features19MM CIRCUMFERENCE;FLAT TIP MM
end_item_identificationNSN 1240-01-487-0870; PERISCOPE
NSN5310-01-086-1116
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 900208 · 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
•
WIDTH ACROSS FLATS: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
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THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
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HARDNESS RATING: 22.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
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MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
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THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 0.500 INCHES IN
•
NUT HEIGHT: 0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
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NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING22.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
NUT HEIGHT0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH13
SUBSTITUTES & CROSS-REFERENCES 2
510004Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
510504Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 900208?
900208 is a SCREW,MACHINE.
What parts can replace 900208?
There are 2 known substitutes for 900208: 510004, 510504. Substitute compatibility should be verified for your specific system.
What is the NSN for 900208?
900208 is cataloged in the U.S. Government catalog under NSN 5310-01-086-1116. 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.