NSN 5320-01-688-4978 — this item is cataloged by the U.S. Government under National Stock Number 5320-01-688-4978. Manufacturer of record part number: ITRM4-3.3SD.
Also searched as5320-01-688-4978 ·
5320016884978 ·
NIIN 016884978 ·
01-688-4978 ·
FSC 5320 Rivets · CAGE 3H464 · ITRM4-3.3SD
Grip Length: 2.00 MILLIMETERS MINIMUM AND 3.30 MILLIMETERS MAXIMUM MM
Shank Style: BLIND RIVET, NUT AND BOLT ASSEMBLY
Material: STEEL BODY
Head Major Diameter: 6.75 MILLIMETERS NOMINAL MM
1 manufacturer part number on file
Identification
NSN: 5320-01-688-4978
NIIN: 016884978
FSC: 5320 — Rivets
FSG: 53 — Hardware and Abrasives
Primary part number: ITRM4-3.3SD
Manufacturer: Bollhoff Inc. Dba Bollhoff Rivnut Inc
General Description
The Pin-Rivet, cataloged under National Stock Number 5320-01-688-4978, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Bollhoff Inc. Dba Bollhoff Rivnut Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5320-01-688-4978
Primary Part Number
ITRM4-3.3SD
Item Name
Pin-Rivet
FSC / FSG
5320 / 53 — Rivets
Manufacturer
Bollhoff Inc. Dba Bollhoff Rivnut Inc
Status
ACTIVE
Fastener Length
9.50 MILLIMETERS NOMINAL MM
Head Style
STRAIGHT PAN
Grip Length
2.00 MILLIMETERS MINIMUM AND 3.30 MILLIMETERS MAXIMUM MM
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5320-00-001-1756
PIN-RIVET
5320-00-001-1756
PIN-RIVET
5320-00-001-2042
5320-00-001-2042 · Item name not on file
5320-00-001-3944
RIVET,SOLID
5320-00-001-5126
5320-00-001-5126 · Item name not on file
5320-00-001-5151
5320-00-001-5151 · Item name not on file
5320-00-001-5152
5320-00-001-5152 · Item name not on file
5320-00-001-5153
5320-00-001-5153 · Item name not on file
Frequently Asked Questions
What is NSN 5320-01-688-4978?
NSN 5320-01-688-4978 is a Pin-Rivet, manufactured by Bollhoff Inc. Dba Bollhoff Rivnut Inc, classified under FSC 5320, Rivets. Status: active.
What part numbers are listed for NSN 5320-01-688-4978?
NSN 5320-01-688-4978 has 1 manufacturer part number on file: ITRM4-3.3SD (Bollhoff Inc. Dba Bollhoff Rivnut Inc).
What are the specifications of ITRM4-3.3SD?
Key specifications for ITRM4-3.3SD: Fastener Length: 9.50 MILLIMETERS NOMINAL MM; Head Style: STRAIGHT PAN; Grip Length: 2.00 MILLIMETERS MINIMUM AND 3.30 MILLIMETERS MAXIMUM MM; Shank Style: BLIND RIVET, NUT AND BOLT ASSEMBLY. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5320-01-688-4978 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.