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187872 — SWITCH SECTION,ROTARY

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

187872: SWITCH SECTION,ROTARY.

The SWITCH SECTION,ROTARY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 377 OVERALL, body_type: SOLID, head_type: SOLID, overall_width: 1.625 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG, body_thickness: 0.180 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-287-2179, 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→ 187872
NSN: 4730-00-287-2179
NIINs: 002872179, 004772961, 013211617
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
materialCOPPER ALLOY 377 OVERALL
body_typeSOLID
head_typeSOLID
overall_width1.625 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
body_thickness0.180 INCHES NOMINAL IN
overall_height1.875 INCHES NOMINAL IN
drive_end_styleRAISED SQUARE
mounting_methodSTRUT SINGLE MOUNTING FACILITY
connection_stylePLAIN
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorSWITCH SECTION, ROTARY
NSN4730-00-287-2179
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 187872 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD TYPE: SOLID
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.063 INCHES IN
•
CONNECTION STYLE: PLAIN
•
DRIVE END STYLE: RAISED SQUARE
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COMP 22,1/2 H,OR COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 0.063 INCHES EXTERNAL IN
TECHNICAL CHARACTERISTICS
HEAD TYPESOLID
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.063 INCHES IN
CONNECTION STYLEPLAIN
DRIVE END STYLERAISED SQUARE
CRITICALITY CODE JUSTIFICATIONFEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 22,1/2 H,OR COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE0.063 INCHES EXTERNAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
SURFACE TREATMENTCADMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 6
AS4863Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS20913-0Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILF5509AReference document
Same NSN cross-reference
Reference document — Secondary reference
AS4863-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS4863Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AN913-0Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 187872?
187872 is a SWITCH SECTION,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 187872?
There are 6 known substitutes for 187872: AS4863, MS20913-0, MILF5509A and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 187872?
187872 is cataloged in the U.S. Government catalog under NSN 4730-00-287-2179. This indicates validated use in U.S. government and defense supply chains.
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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.