PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15991Cap,pillow Block

Moog Inc. Dba Ampac-Isp Corp · NSN 3130-01-188-1977 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-01-188-1977 — this item is cataloged by the U.S. Government under National Stock Number 3130-01-188-1977. Primary manufacturer part number: 15991.
Features
  • Cap,pillow Block — FSC 3130
  • General Characteristics Item Description: STEEL,SAE 1018 OR 1020
  • 3 verified cross-references
  • Primary manufacturer: Moog Inc. Dba Ampac-Isp Corp
Applications
  • Industrial machinery bearing replacement
  • Motor and pump shaft assemblies
  • HVAC blower and fan assemblies
General Description

The Cap,pillow Block, cataloged under National Stock Number 3130-01-188-1977, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Moog Inc. Dba Ampac-Isp Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3130-01-188-1977
Primary Part Number15991
Item NameCap,pillow Block
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerMoog Inc. Dba Ampac-Isp Corp
StatusACTIVE
General Characteristics Item DescriptionSTEEL,SAE 1018 OR 1020
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5110-00-241-9160 INTERCHANGEABLE
File,hand
4240-01-016-670715991 INTERCHANGEABLE
Goggles,plate,welders
Surewerx Usa Inc
6510-01-045-3506 INTERCHANGEABLE
Swabs,sting Kill
5133-01-399-1192 INTERCHANGEABLE
Drill,twist
5998-01-498-1357 INTERCHANGEABLE
Holder,electrical Card
5307-01-595-7106C121415991 INTERCHANGEABLE
Stud,shouldered
The Gorman-Rupp Company Div Gorman-Rupp
Cross-Reference Index
Part NumberManufacturer
15991 PRIMARY Moog Inc. Dba Ampac-Isp Corp (USA)
500-16715 PIECE 8 Moog Inc. Dba Ampac-Isp Corp (USA)
500-16715 ITEM 8 Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
5110-00-241-9160INTERCHANGEABLE
FILE,HAND
4240-01-016-6707INTERCHANGEABLE
GOGGLES,PLATE,WELDERS
15991
6510-01-045-3506INTERCHANGEABLE
SWABS,STING KILL
5133-01-399-1192INTERCHANGEABLE
DRILL,TWIST
5998-01-498-1357INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
5307-01-595-7106INTERCHANGEABLE
STUD,SHOULDERED
C121415991

Frequently Asked Questions

What is NSN 3130-01-188-1977?

NSN 3130-01-188-1977 is a Cap,pillow Block, manufactured by Moog Inc. Dba Ampac-Isp Corp, classified under FSC 3130 (No Item Name Available). Status: active.

What are the part numbers for NSN 3130-01-188-1977?

NSN 3130-01-188-1977 has 3 cross-referenced part numbers: 15991 (Moog Inc. Dba Ampac-Isp Corp), 500-16715 PIECE 8 (Moog Inc. Dba Ampac-Isp Corp), 500-16715 ITEM 8 (Moog Inc. Dba Ampac-Isp Corp).

What NSN replaces 3130-01-188-1977?

There are 6 known substitutes for 3130-01-188-1977: 5110-00-241-9160, 4240-01-016-6707, 6510-01-045-3506 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15991?

Key specifications for 15991: General Characteristics Item Description: STEEL,SAE 1018 OR 1020. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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