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173979 — KEYTOP,KEYBOARD

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

173979: KEYTOP,KEYBOARD.

The KEYTOP,KEYBOARD is a the manufacturer industrial component. Key specifications include material: PLASTIC, overall_width: 0.250 INCHES NOMINAL IN, overall_height: 0.141 INCHES NOMINAL IN, overall_length: 0.391 INCHES NOMINAL IN, special_features: ONE SLOT,0.047 IN. W BY 0.188 IN.

LG IN. This part is cataloged in the U.S. Government catalog under NSN 5310-00-052-6010, 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→ 173979
NSN: 5310-00-052-6010
NIINs: 000526010, 000845008, 007914148
FSC: 5310 — Nuts and Washers
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC
overall_width0.250 INCHES NOMINAL IN
overall_height0.141 INCHES NOMINAL IN
overall_length0.391 INCHES NOMINAL IN
special_featuresONE SLOT,0.047 IN. W BY 0.188 IN. LG IN
NSN5310-00-052-6010
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 173979 · 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
•
OVERALL DIAMETER: 2.625 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: CADMIUM OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.880 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.625 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTCADMIUM OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.880 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN
THICKNESS0.050 INCHES NOMINAL IN
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 173979?
173979 is a KEYTOP,KEYBOARD. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 173979?
173979 is cataloged in the U.S. Government catalog under NSN 5310-00-052-6010. 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.