Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Length: 0.437 INCHES NOMINAL IN
Insert Size: 0.5625-12
Style Designator: KEYLOCK
Internal Thread Relief Depth: 0.367 INCHES NOMINAL IN
Thread Direction: RIGHT-HAND
Identification
NSN: 5325-01-455-7550
NIIN: 014557550
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
General Description
The Insert,screw Thread, cataloged under National Stock Number 5325-01-455-7550, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5325-01-455-7550
Item Name
Insert,screw Thread
FSC / FSG
5325 / 53 — Fastening Devices
Status
ACTIVE
Length
0.437 INCHES NOMINAL IN
Surface Treatment Document and Classification
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Length
0.437 INCHES NOMINAL IN
Insert Size
0.5625-12
Style Designator
KEYLOCK
Internal Thread Relief Depth
0.367 INCHES NOMINAL IN
Thread Direction
RIGHT-HAND
Nominal Thread Size
0.3125 INCHES IN
Full Internal Thread Length
0.070 INCHES NOMINAL IN
Surface Treatment
PASSIVATE OVERALL
Thread Class
2A A
Thread Quantity Per Inch
18
Material
IRON ALLOY 660 OVERALL
Thread Series Designator
UNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MS51832CA103
2/2Government specification standardization
U.S. Government activity
No interchangeability data on file.
Other items in FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884
5325-00-000-1884 · Item name not on file
5325-00-000-9988
5325-00-000-9988 · Item name not on file
5325-00-001-1567
RING,RETAINING
5325-00-001-2043
FASTENER,PANEL
5325-00-001-3842
RING,RETAINING
5325-00-001-3858
RING,RETAINING
5325-00-001-3871
RING,RETAINING
5325-00-001-4317
RING,RETAINING
Related Parts in Hardware and Abrasives
5325-00-000-1884
5325-00-000-1884 · Item name not on file
5325-00-000-9988
5325-00-000-9988 · Item name not on file
5325-00-001-1567
RING,RETAINING
5325-00-001-2043
FASTENER,PANEL
FRB7500-6A3
5325-00-001-3842
RING,RETAINING
553575
5325-00-001-3858
RING,RETAINING
5325-00-001-3871
RING,RETAINING
312382
5325-00-001-4317
RING,RETAINING
P27B50
Frequently Asked Questions
What is NSN 5325-01-455-7550?
NSN 5325-01-455-7550 is a Insert,screw Thread, classified under FSC 5325, Fastening Devices. Status: active.
What are the specifications of 5325-01-455-7550?
Key specifications for 5325-01-455-7550: Length: 0.437 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.437 INCHES NOMINAL IN; Insert Size: 0.5625-12. 14 specifications are documented in the U.S. Government catalog.
Is NSN 5325-01-455-7550 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.