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100938 — SWITCH,ROTARY

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

100938: SWITCH,ROTARY.

- MDF frame - Including mount - High-quality ground glass - Precision mitre - With heavy-duty hook. Key specifications include shape: ROUND, width: 1.000 INCHES NOMINAL IN, length: 4.000 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, thickness: 0.020 INCHES NOMINAL IN, shaft_type: ROUND, FLATTED SINGLE ACTUATOR. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-251-8839, 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→ 100938
NSN: 5331-00-251-8839
NIINs: 002518839, 006895146, 009247532, 012232560, 015653140
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
shapeROUND
width1.000 INCHES NOMINAL IN
length4.000 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
thickness0.020 INCHES NOMINAL IN
shaft_typeROUND, FLATTED SINGLE ACTUATOR
flat_height0.216 INCHES NOMINAL SINGLE ACTUATOR IN
inscriptionPARTIAL LEGEND INDICATOR,HORIZONTAL SITUATION AQU-2/A,MIL-H-26689B AMENDMENT-1 ASTRONAUTICS CORP OF AMERICA,MILWAUKEE,WIS PART NO. 100524 MF FIRST SIDE
temp_rating-65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
shaft_length1.000 INCHES NOMINAL SINGLE ACTUATOR IN
terminal_typeTAB, SOLDER LUG
thread_length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
NSN5331-00-251-8839
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 100938 MFR: Hama ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TEMP RATING: -65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-5510 MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5510 MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE; ARMORED MULTI-PURPOSE VEHICLE (AMPV).
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 10
5-131-04-024-00Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AMS-P-5510Reference document
Same NSN cross-reference
Reference document — Secondary reference
0921206-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS28778-12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
B400PCAN6290-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
4955500114Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 100938?
100938 is a SWITCH,ROTARY manufactured by Hama. It is classified as a MRO (MRO_GENERAL).
What parts can replace 100938?
There are 10 known substitutes for 100938: 5-131-04-024-00, AMS-P-5510, 0921206-9 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 100938?
100938 is cataloged in the U.S. Government catalog under NSN 5331-00-251-8839. 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.