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91683 — 91683

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

91683: 91683.

The 91683 is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.078 INCHES NOMINAL IN, thread_series: UNS, thread_direction: RIGHT-HAND, surface_treatment: NICKEL OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-448-4144, 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
MRO→ MRO_GENERAL→ 91683
NSN: 5310-00-448-4144
NIINs: 004484144, 011554599, 013152346, 016482103, 016487444
FSC: 5310 — Nuts and Washers
CAGE: 3B4M0 — LUCENT TECHNOLOGIES INC CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.078 INCHES NOMINAL IN
thread_seriesUNS
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
width_across_flats0.562 INCHES NOMINAL IN
nominal_thread_size0.469 INCHES IN
bearing_surface_typeCHAMFERED
thread_pitch_diameters+0.4487 TO 0.4513 INCHES IN
thread_quantity_per_inch32
NSN5310-00-448-4144
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91683 · 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: 0.562 INCHES NOMINAL IN
•
THREAD SERIES: UNS
•
THREAD PITCH DIAMETERS: +0.4487 TO 0.4513 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.469 INCHES IN
•
NUT HEIGHT: 0.078 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
THREAD SERIESUNS
THREAD PITCH DIAMETERS+0.4487 TO 0.4513 INCHES IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.469 INCHES IN
NUT HEIGHT0.078 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL OVERALL
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH32
MATERIALCOPPER ALLOY OVERALL
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 91683?
91683 is a 91683. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 91683?
91683 is cataloged in the U.S. Government catalog under NSN 5310-00-448-4144. 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.