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178957 — INDICATOR,FILTER WARNING,VEHICUL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

178957: INDICATOR,FILTER WARNING,VEHICUL.

INDICATOR,FILTER WARNING,VEHICUL. Key specifications include part_name_assigned_by_controlling_agency: INDICATOR,FILTER WARNING. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-159-0948, 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
178957
NSN: 3120-00-159-0948
NIINs: 001590948, 012625185
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 71791 — CURTISS-WRIGHT CONTROLS, INC. DBA CURTISS WRIGHT DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyINDICATOR,FILTER WARNING
NSN3120-00-159-0948
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 178957 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
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CORNER SHAPE: SQUARE ALL CORNERS
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
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BODY OUTSIDE DIAMETER: 1.5738 INCHES MINIMUM AND 1.5744 INCHES MAXIMUM IN
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HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
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STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6371 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
CORNER SHAPESQUARE ALL CORNERS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
BODY OUTSIDE DIAMETER1.5738 INCHES MINIMUM AND 1.5744 INCHES MAXIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6371 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH4.5200 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.2500 INCHES NOMINAL IN
SPECIAL FEATURESTWO TANGS 0.1800 IN. W BY 0.1200 IN. LG LOCATED AT EACH END IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 178957?
178957 is a INDICATOR,FILTER WARNING,VEHICUL.
What is the NSN for 178957?
178957 is cataloged in the U.S. Government catalog under NSN 3120-00-159-0948. 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.