221971 — RADAR SET SUBASSEMBLY

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

221971: RADAR SET SUBASSEMBLY.

The RADAR SET SUBASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, step_length: 0.020 INCHES NOMINAL IN, step_diameter: 0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN, inside_diameter: 0.376 INCHES NOMINAL IN, outside_diameter: 1.416 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN, style_designator: ROUND, STEPPED. This part is cataloged in the U.S.

Government catalog under NSN 1660-00-696-6976, 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→ 221971

NSN: 1660-00-696-6976
NIINs: 006966976, 008516021, 015605056
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
CAGE: 01359 — TRIUMPH THERMAL SYSTEMS - MARYLAND, INC. (USA)

SPECIFICATIONS

material	STEEL COMP 4140
step_length	0.020 INCHES NOMINAL IN
step_diameter	0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN
inside_diameter	0.376 INCHES NOMINAL IN
outside_diameter	1.416 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
special_features	PROVIDES COUP0LING FROM THE EXCITER TO THE ROTOR AND BACK TO STATOR; PROVIDES SINE AND COSINE SIGNALS FOR CONVERSION ELECTRONICS
style_designator	ROUND, STEPPED
surface_treatment	CHROMIUM
material_thickness	0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
fsc_application_data	TURBINE,ACFT COOLING
end_item_identification	ARSR-3
material_document_and_classification	MIL-S-5626, COND C4 MIL SPEC SINGLE MATERIAL RESPONSE
NSN	1660-00-696-6976

COMPONENT DIAGRAM

KEY FEATURES

•

FSC APPLICATION DATA: TURBINE,ACFT COOLING

•

STEP LENGTH: 0.020 INCHES NOMINAL IN

•

STYLE DESIGNATOR: ROUND, STEPPED

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626, COND C4 MIL SPEC SINGLE MATERIAL RESPONSE

•

OUTSIDE DIAMETER: 1.416 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN

•

MATERIAL THICKNESS: 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN

•

INSIDE DIAMETER: 0.376 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

FSC APPLICATION DATA	TURBINE,ACFT COOLING
STEP LENGTH	0.020 INCHES NOMINAL IN
STYLE DESIGNATOR	ROUND, STEPPED
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626, COND C4 MIL SPEC SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER	1.416 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
MATERIAL THICKNESS	0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
INSIDE DIAMETER	0.376 INCHES NOMINAL IN
SPECIAL FEATURES	12 BLADES EQUALLY SPACED ONE SIDE; CIRCULAR GROOVE ONE SIDE; MICROINCH FINISH FLAT SURFACE ONE SIDE 4 AA; MICROINCH FINISH FLAT SURFACE ONE SIDE 8 AA
SURFACE TREATMENT	CHROMIUM
STEP DIAMETER	0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — mutilation

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FREQUENTLY ASKED QUESTIONS

What is 221971?

221971 is a RADAR SET SUBASSEMBLY. It is classified as a MRO (MRO_GENERAL).

What is the NSN for 221971?

221971 is cataloged in the U.S. Government catalog under NSN 1660-00-696-6976. This indicates validated use in U.S. government and defense supply chains.

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