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188951 — LIGHT ASSEMBLY,INDICATOR

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

188951: LIGHT ASSEMBLY,INDICATOR.

The LIGHT ASSEMBLY,INDICATOR is a the manufacturer industrial component. Key specifications include diameter: 0.099 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN, material: STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL, lens_legend: OVRD SINGLE ROW SECOND POSITION HORIZONTAL HORIZONTAL SPLIT DISPLAY DIVISION B, overall_length: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, shear_strength: 1000 DOUBLE POUND, hardness_rating: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-844-4790, 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
188951
NSN: 5315-00-844-4790
NIINs: 008444790, 013214792, 013716622
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
diameter0.099 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
materialSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL
lens_legendOVRD SINGLE ROW SECOND POSITION HORIZONTAL HORIZONTAL SPLIT DISPLAY DIVISION B
overall_length0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
shear_strength1000 DOUBLE POUND
hardness_rating46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
special_features3A30, TI 6330.5, FA 10630, VOL 3, SEC 8, PG 7-254
style_designatorSLOTTED
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.022 INCHES MINIMUM IN
end_item_identificationAIRPORT SURVEILLANCE DETECTION EQUIPMENT 3
criticality_code_justificationFEAT
NSN5315-00-844-4790
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 188951 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
DIAMETER: 0.099 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.022 INCHES MINIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSLOTTED
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
DIAMETER0.099 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
OVERALL LENGTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
MATERIAL THICKNESS0.022 INCHES MINIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SHEAR STRENGTH1000 DOUBLE POUND
MATERIALSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
326264Reference document
Same NSN cross-reference
Reference document — Secondary reference
411294-3050Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
NAS561-3-8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
10122773Reference document
Same NSN cross-reference
Reference document — Informative reference only
5315008444790Reference document
Same NSN cross-reference
Reference document — Informative reference only
52-022-094-0500Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 188951?
188951 is a LIGHT ASSEMBLY,INDICATOR.
What parts can replace 188951?
There are 9 known substitutes for 188951: 326264, 411294-3050, NAS561-3-8 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 188951?
188951 is cataloged in the U.S. Government catalog under NSN 5315-00-844-4790. 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.