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100-16SS — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

100-16SS: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, nut_height: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-176-8121, 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
100-16SS
NSN: 5310-00-176-8121
NIINs: 001768121, 004005503
FSC: 5310 — Nuts and Washers
CAGE: 19315 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeFLAT OR CHAMFERED
end_item_identificationMRAP RG-33; MULTIPLE LAUNCH ROCKET SYSTEM
thread_quantity_per_inch28
nondefinitive_spec/std_data2 TYPE AND 13 STYLE
NSN5310-00-176-8121
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 100-16SS · 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: 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 COMP FM MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-7720 COMP FM MIL SPEC 3RD MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
COUNTERSINK ANGLE: 110.0 DEGREES NOMINAL NUT
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 COMP FM MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-7720 COMP FM MIL SPEC 3RD MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
NUT STYLEHEXAGON
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 6
368508Reference document
Same NSN cross-reference
Reference document — Secondary reference
HT426Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN345C416Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6L3504-28Reference document
Same NSN cross-reference
Reference document — Secondary reference
92211160000Reference document
Same NSN cross-reference
Reference document — Secondary reference
945011-214Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 100-16SS?
100-16SS is a NUT,PLAIN,HEXAGON.
What parts can replace 100-16SS?
There are 6 known substitutes for 100-16SS: 368508, HT426, AN345C416 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 100-16SS?
100-16SS is cataloged in the U.S. Government catalog under NSN 5310-00-176-8121. 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.