The Synchro Assembly, cataloged under National Stock Number 5990-01-039-0898, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is American Precision Industries, Inc Div Portescap Us. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-039-0898 |
| Primary Part Number | 8TTXTX510J95A |
| Item Name | Synchro Assembly |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | American Precision Industries, Inc Div Portescap Us |
| Status | ACTIVE |
| General Characteristics Item Description | SYNCHRO,DUAL TANDEM; SIZE 8; ROTOR AS PRIMARY 26 VOLTS INPUT; 0.050 AMPS INPUT CURRENT; 0.52 WATTS INPUT POWER; 185 OHMS D. C. RESISTANCE; STATOR OUTPUT VOLTAGE 11.8; O454 TRANSFORMATION RATIO; 0.040 NULL VOLTAGE; 16 DEG. PHASE SHIFT; 400 HZ; 1O WIRE LEAD TERMINALS; BODY LG 2.900 IN. MAX.; BODY DIA. 0.795 IN. MAX.; SHAFT LG 0.485 MAX.; SHAFT RADIAL PLAY 0.008 IN. MAX. WITH 4.O OUNCE LOAD; SHAFT RUN-OUT 0.0016 IN. MAX. MEASURED 0.062 IN. FROM SHAFT END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8TTXTX510J95A PRIMARY | American Precision Industries, Inc Div Portescap Us (USA) |
| 805612-1 | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 805612-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| ZGGH8TF004-004L785 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-01-039-0898 is a Synchro Assembly, manufactured by American Precision Industries, Inc Div Portescap Us, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-039-0898 has 2 manufacturer part numbers on file: 8TTXTX510J95A (American Precision Industries, Inc Div Portescap Us), 805612-1 (Honeywell International, Inc Div Aerospace-Tucson).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-340-6046. Verify interchangeability with system specifications before substitution.
Key specifications for 8TTXTX510J95A: General Characteristics Item Description: SYNCHRO,DUAL TANDEM; SIZE 8; ROTOR AS PRIMARY 26 VOLTS INPUT; 0.050 AMPS INPUT CURRENT; 0.52 WATTS INPUT POWER; 185 OHMS D. C. RESISTANCE; STATOR OUTPUT VOLTAGE 11.8; O454 TRANSFORMATION RATIO; 0.040 NULL VOLTAGE; 16 DEG. PHASE SHIFT; 400 HZ; 1O WIRE LEAD TERMINALS; BODY LG 2.900 IN. MAX.; BODY DIA. 0.795 IN. MAX.; SHAFT LG 0.485 MAX.; SHAFT RADIAL PLAY 0.008 IN. MAX. WITH 4.O OUNCE LOAD; SHAFT RUN-OUT 0.0016 IN. MAX. MEASURED 0.062 IN. FROM SHAFT END IN; Special Features: SHAFT DETAIL SLOT PERMISSIBLE OR OPTIONAL. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.